224 results
The ability of the nematode-trapping fungus Duddingtonia flagrans to reduce the transmission of
- A.S. Fernández, M. Larsen, P. Nansen, E. Henningsen, J. Grønvold, J. Wolstrup, S.A. Henriksen, H. Bjørn
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- Journal of Helminthology / Volume 73 / Issue 2 / February 1999
- Published online by Cambridge University Press:
- 11 April 2024, pp. 115-122
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The ability of two isolates of the nematode-trapping fungus Duddingtonia flagrans to reduce the numbers of gastrointestinal nematode larvae on herbage was tested in three plot studies. Artificially prepared cow pats containing Ostertagia ostertagi eggs, with and without fungal spores, were deposited on pasture plots two or three times during the grazing season in 1995, 1996 and 1997. The herbage around each pat was sampled fortnightly over a period of 2 months and the number of infective larvae was recorded. At the end of the sampling period, the remainder of the faecal pats was collected to determine the wet weight, dry weight, and content of organic matter. The infective larvae remaining in the pats were extracted. Faecal cultures showed that both fungal isolates significantly reduced the number of infective larvae. Significantly fewer larvae were recovered from herbage surrounding fungus-treated pats compared with control pats in all three experiments, reflecting the ability of the fungus to destroy free-living larval stages in the faecal pat environment. After 8 weeks on pasture there were no differences between control and fungus-treated pats with respect to wet weight, dry weight, and organic matter content. This indicates that the degradation of faeces was not negatively affected by the presence of the fungus.
Influence of Silica Content on the Surface Charge Characteristics of Allophanic Clays
- A. Gonzales-Batista, J. M. Hernandez-Moreno, E. Fernandez-Caldas, A. J. Herbillon
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- Clays and Clay Minerals / Volume 30 / Issue 2 / April 1982
- Published online by Cambridge University Press:
- 02 April 2024, pp. 103-110
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The surface and charge characteristics of 6 allophanic clays originating from a climatosequence of Andisols have been studied by titration, ion retention, surface area, and reactivity measurements. Several properties of these clays, such as the pH of zero charge, the magnitude of the surface area, and the reactivity of structural hydroxyl groups, appear to be governed by their chemical composition, especially by their silica content. A similar relationship between the above properties and silica content also exists for synthetic aluminosilicate gels (often quoted in the literature as possible models of allophanes), despite their different structure to the natural clays. An explanation is that as desilication proceeds, octahedral polymeric units of aluminum progressively individualize in both the synthetic and natural samples. The surface areas of the aUophanic clays, based on the slope of the titration curve at pH 7, are closely related to the amounts of structural hydroxyl that can react with fluoride at about the same pH. The permanent negative charges are always very low, even for silica-rich, allophane-bearing samples. It is therefore suggested that all of these clays should be virtually free of tetrahedral aluminum.
WIC staff and healthcare professional perceptions of an EHR intervention to facilitate referrals to and improve communication and coordination with WIC: A qualitative study
- Abigail McCall, Ashley E. Strahley, Katy W. Martin-Fernandez, Kristina H. Lewis, Angelina Pack, Beatriz Ospino-Sanchez, Ivy Greene, Gabriela de la Vega, Alysha J. Taxter, Sally G. Eagleton, Kimberly G. Montez
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- Journal:
- Journal of Clinical and Translational Science / Volume 8 / Issue 1 / 2024
- Published online by Cambridge University Press:
- 26 February 2024, e47
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Objectives:
Participation in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) has numerous benefits, yet many eligible children remain unenrolled. This qualitative study sought to explore perceptions of a novel electronic health record (EHR) intervention to facilitate referrals to WIC and improve communication/coordination between WIC staff and healthcare professionals.
Methods:WIC staff in three counties were provided EHR access and recruited to participate. An automated, EHR-embedded WIC participation screening and referral tool was implemented within 8 healthcare clinics; healthcare professionals within these clinics were eligible to participate. The interview guide was developed using the Consolidated Framework for Implementation Research to elicit perceptions of this novel EHR-based intervention. Semi-structured interviews were conducted via telephone. Interviews were recorded, transcribed, coded, and analyzed using thematic analysis.
Results:Twenty semi-structured interviews were conducted with eight WIC staff, seven pediatricians, four medical assistants, and one registered nurse. Most participants self-identified as female (95%) and White (55%). We identified four primary themes: (1) healthcare professionals had a positive view of WIC but communication and coordination between WIC and healthcare professionals was limited prior to WIC having EHR access; (2) healthcare professionals favored WIC screening using the EHR but workflow challenges existed; (3) EHR connections between WIC and the healthcare system can streamline referrals to and enrollment in WIC; and (4) WIC staff and healthcare professionals recommended that WIC have EHR access.
Conclusions:A novel EHR-based intervention has potential to facilitate healthcare referrals to WIC and improve communication/coordination between WIC and healthcare systems.
Formation of Nontronite from Oxidative Dissolution of Pyrite Disseminated in Precambrian Felsic Metavolcanics of the Southern Iberian Massif (Spain)
- J. C. Fernández-Caliani, E. Crespo, M. Rodas, J. F. Barrenechea, F. J. Luque
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- Clays and Clay Minerals / Volume 52 / Issue 1 / February 2004
- Published online by Cambridge University Press:
- 01 January 2024, pp. 106-114
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This paper describes a rare occurrence of nontronite associated with sulfide-bearing felsic metavolcanics, providing evidence of colloidal deposition in open spaces as result of a low-temperature water-rock interaction. Microbotryoidal masses of green nontronite with impurities of kaolinite, illite, barite, amorphous silica and iron oxyhydroxides are found as vein and cavity fillings in deeply kaolinized rhyolites and rhyolitic tuffs of Precambrian age, at Oliva de Merida in SW Spain. Clay mineral characterization has been carried out by X-ray diffraction, infrared spectroscopy, thermal analysis, analytical electron microscopy and stable isotope (oxygen and hydrogen) analysis. Nontronite was formed under low-temperature alteration conditions, from a continuous sequence of reactions and aqueous solution compositions, involving two basic processes that acted in concert: oxidative dissolution of pyrite and hydrolysis of K-feldspar. After acidity neutralization, dissolved silica released by incongruent dissolution of K-feldspar reacted with ferric sulfate derived from pyrite oxidation to form nontronite under oxidizing conditions, in the presence of relatively warm meteoric water.
8 The Dunning-Kruger Effect on a Latinx Population
- Carolina Garza Castaneda, Matthew J. Wright, Raymundo Cervantes, Tara L. Victor, Krissy E. Smith, Chelsea McElwee, Adriana Cuello, Alberto L. Fernandez, Isabel D. C. Munoz, David J. Hardy, Daniel W. Lopez-Hernandez
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 423-424
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Objective:
Individuals tend to overestimate their abilities in areas where they are less competent. This cognitive bias is known as the Dunning-Krueger effect. Research shows that Dunning-Krueger effect occurs in persons with traumatic brain injury and healthy comparison participants. It was suggested by Walker and colleagues (2017) that the deficits in cognitive awareness may be due to brain injury. Confrontational naming tasks (e.g., Boston Naming Test) are used to evaluate language abilities. The Cordoba Naming Test (CNT) is a 30-item confrontational naming task developed to be administered in multiple languages. Hardy and Wright (2018) conditionally validated a measure of perceived mental workload called the NASA Task Load Index (NASA-TLX). They found that workload ratings on the NASA-TLX increased with increased task demands on a cognitive task. The purpose of the present study was to determine whether the Dunning-Kruger effect occurs in a Latinx population and possible factors driving individuals to overestimate their abilities on the CNT. We predicted the low-performance group would report better CNT performance, but underperform on the CNT compared to the high-performance group.
Participants and Methods:The sample consisted of 129 Latinx participants with a mean age of 21.07 (SD = 4.57). Participants were neurologically and psychologically healthy. Our sample was divided into two groups: the low-performance group and the high-performance group. Participants completed the CNT and the NASA-TLX in English. The NASA-TLX examines perceived workload (e.g., performance) and it was used in the present study to evaluate possible factors driving individuals to overestimate their abilities on the CNT. Participants completed the NASA-TLX after completing the CNT. Moreover, the CNT raw scores were averaged to create the following two groups: low-performance (CNT raw score <17) and high-performance (CNT raw score 18+). A series of ANCOVA's, controlling for gender and years of education completed were used to evaluate CNT performance and CNT perceived workloads.
Results:We found the low-performance group reported better performance on the CNT compared to the high-performance, p = .021, np2 = .04. However, the high-performance group outperformed the low-performance group on the CNT, p = .000, np2 = .53. Additionally, results revealed the low-performance group reported higher temporal demand and effort levels on the CNT compared to the high-performance group, p's < .05, nps2 = .05.
Conclusions:As we predicted, the low-performance group overestimated their CNT performance compared to the high-performance group. The current data suggest that the Dunning-Kruger effect occurs in healthy Latinx participants. We also found that temporal demand and effort may be influencing awareness in the low-performance group CNT performance compared to the high-performance group. The present study suggests subjective features on what may be influencing confrontational naming task performance in low-performance individuals more than highperformance individuals on the CNT. Current literature shows that bilingual speakers underperformed on confrontational naming tasks compared to monolingual speakers. Future studies should investigate if the Dunning-Kruger effects Latinx English monolingual speakers compared to Spanish-English bilingual speakers on the CNT.
42 Lexical Retrieval and Acculturation in Generation Z Mexicans
- Yvette D Jesus, Krissy E Smith, Krithika Sivaramakrishnan, Reymundo Cervantes, Tara L Victor, Brittany Heuchert, Dorthy Schmidt, Diana Palacios, Chelsea McElwee, David J Hardy, Enrique Lopez, Alberto L Fernandez, Daniel W Lopez Hernandez
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, p. 453
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Objective:
The Cordoba Naming Test (CNT) is a 30-item lexical retrieval task that was developed to be administered in multiple languages. Research shows that self-identifying Mexicans residing in Mexico outperform self-identifying Mexicans that reside in the United States on the CNT. Studies indicate that the process of acculturation can influence cognitive performance. Previous studies demonstrated that Generation Z individuals (i.e., people born between 1997 and 2012) have underperformed on the CNT compared to Generation Y individuals (i.e., people born between 1981 and 1996). To our knowledge, no study has examined the influence of acculturation on Generation Z Mexicans’ CNT performance. We expected Mexicans residing in Mexico (MRM) to outperform Mexicans residing in the United States on the CNT and to report higher acculturation traits. We also predicted that acculturation would correlate with CNT performance.
Participants and Methods:The present study sample consisted of 285 Generation Z psychologically and neurologically healthy Mexicans with a mean age of 20.32 (SD = 1.60). Participants were divided into three groups: MRM, Mexicans residing in the United States, and Mexican-Americans residing in the United States (MARUS). All participants completed the CNT and acculturation measure in Spanish. Acculturation traits were measured by the Abbreviated Multidimensional Acculturation Scale (AMAS). ANCOVAs were used to evaluate differences in the CNT and AMAS (i.e., Spanish language, Latino competency, Latino identity). Pearson’s correlation coefficient was used to evaluate the relationship between acculturation on CNT performance.
Results:MRM outperformed the Mexicans residing in the United States and MARUS on the CNT, p = .000, np2 = .49. The MRM group reported better Spanish language abilities compared to Mexicans residing in the United States and the MARUS groups, p = .000, np2 = .10. Additionally, MRM reported better Latino competency than the MARUS group, p = .000, np2 = .08. Pearson’s correlation coefficient revealed that the MARUS’s Spanish language abilities impacted CNT performance, p = .000, r = .48. In addition, we found that Latino competency correlated with CNT performance, p’s < .05, r’s = .20-.47, in both the MRM and Mexicans residing in the United States groups. Latino identity did not significantly correlate with CNT performance in any group.
Conclusions:Results confirmed that MRM individuals perform better on the CNT than Mexicans residing in the United States and MARUS. Additionally, we found that several acculturation traits correlated with Mexican groups’ CNT performance. Our research indicates that while all Generation Z individuals of Mexican heritage feel strongly connected to their Latino identity regardless of where they live, MARUS feel less competent in Spanish and Latinx culture than MRM and Mexicans residing in the United States. Future work should further explore these differences for better insight into how acculturative factors influence lexical retrieval performance. Future work with bigger sample sizes can additionally examine CNT performance and acculturation in Generation Z first-generation and non-first-generation Mexicans (e.g., second-generation, third-generation) residing in the United States.
22 Cordoba Naming Test Performance and Acculturation in a Geriatric Population
- Isabel C.D. Muñoz, Krissy E. Smith, Santiago I. Espinoza, Diana M. R. Maqueda, Adriana C. Cuello, Ana Paula Pena, Carolina Garza, Raymundo Cervantes, Jill Razani, Tara L. Victor, David J. Hardy, Alberto L. Fernandez, Natalia Lozano Acosta, Daniel W. Lopez-Hernandez
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 335-336
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Objective:
A commonly used confrontation naming task used in the United States is The Boston Naming Test (BNT). Performance differences has been found in Caucasian and ethnic minorities on the BNT. The Cordoba Naming Test (CNT) is a 30-item confrontation naming task developed in Argentina. Past research has shown acculturation levels can influence cognitive performance. Furthermore, one study evaluated geriatric gender differences on CNT performance in Spanish. Researchers reported that older male participants outperformed female participants on the CNT. To our knowledge, researchers have not evaluated ethnic differences on the CNT using a geriatric sample. The purpose of the present study was to examined CNT performance and acculturation in a Latinx and Caucasian geriatric sample. It was predicted the Caucasian group would outperform the Latinx group on the CNT. Moreover, the Caucasian group would report higher acculturation levels on the Abbreviated Multidimensional Acculturation Scale (AMAS) compared to the Latinx group.
Participants and Methods:The sample consisted of 9 Latinx and 11 Caucasian participants with a mean age of 66.80 (SD =6.10), with an average of 14.30 (SD = 2.00) years of education. All participants were neurologically and psychologically healthy and completed the CNT and the AMAS in English. Acculturation was measured via the AMAS English subscales (i.e., English Language, United States. Identity, United States, Competency). A series of ANCOVAs, controlling for years of education completed and gender, was used to evaluate CNT performance and acculturation.
Results:The ethnic groups were not well demographically matched (i.e., years of education and gender).We found that the Caucasian group outperformed the Latinx group on CNT performance p = .012, ηp 2 = .34. Furthermore, the Caucasian group reported higher acculturation levels (i.e., English Language, United States, Identity, United States, Competency) compared to the Latinx group p’s < .05, ηps2 = .42-.64.
Conclusions:To our knowledge, this is the first study to evaluate CNT performance between ethnic groups with a geriatric sample. As expected the Caucasian group outperformed the Latinx group on the CNT. Also, as expected the Caucasian group reported higher English acculturation levels compared to the Latinx group. Our findings are consistent with past studies showing ethnic differences on confrontational naming performance (i.e., The Boston Naming Test), favoring Caucasians. A possible explanation for group differences could have been linguistic factors (e.g., speaking multiple languages) in our Latinx group. Therefore, since our Latinx group reported lower levels of English Language, United States identity, and United States competency the Latinx group assimilation towards United States culture might of influence their CNT performance. Future studies with different ethnic groups (e.g., African-Americans) and a larger sample size should examine if ethnic differences continue to cross-validate in a geriatric sample.
30 Analyzing Spanish Speakers Cordoba Naming Test Performance
- Raymundo Cervantes, Isabel D.C. Munoz, Estefania J. Aguirre, Natalia Lozano Acosta, Mariam Gomez, Adriana C. Cuello, Krissy E. Smith, Diana I. Palacios Mata, Krithika Sivaramakrishnan, Yvette De Jesus, Santiago I. Espinoza, Diana M. R. Maqueda, David J. Hardy, Tara L. Victor, Alberto L. Fernandez, Daniel W. Lopez-Hernandez
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 443-444
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Objective:
A 30-item confrontation naming test was developed in Argentina for Spanish speakers, The Cordoba Naming Test (CNT). The Boston Naming Test is an established confrontation naming task in the United States. Researchers have used the Boston Naming Test to identify individuals with different clinical pathologies (e.g., Alzheimer’s disease). The current literature on how Spanish speakers across various countries perform on confrontational naming tasks is limited. To our knowledge, one study investigated CNT performance across three Spanish-speaking countries (i.e., Argentina, Mexico, and Guatemala). Investigators found that the Guatemalan group underperformed on the CNT compared to the Argentine and Mexican groups. The purpose of this study was to extend the current literature and investigate CNT performance across five Spanish-speaking countries (i.e., Argentina, Mexico, Guatemala, Colombia, United States). We predicted that the Argentine group would outperform the other Spanish-speaking countries.
Participants and Methods:The present study sample consisted of 502 neurologically and psychologically healthy participants with a mean age of 29.06 (SD = 13.41) with 14.75 years of education completed (SD = 3.01). Participants were divided into five different groups based on their country of birth and current country residency (i.e., United States, Mexico, Guatemala, Argentina, & Colombia). All participants consented to voluntary participation and completed the CNT and a comprehensive background questionnaire in Spanish. The CNT consisted of 30 black and white line drawings, ranging from easy to hard in difficulty. An ANCOVA, controlling for gender, education, and age, was used to evaluate CNT performance between the five Spanish-speaking country groups. Meanwhile, a Bonferroni post-hoc test was utilized to evaluate the significant differences between Spanish-speaking groups. We used a threshold of p < .05 for statistical significance.
Results:Results revealed significant group differences between the five Spanish speaking groups on the CNT, p = .000, np2 = .48. Bonferroni post-hoc test revealed that the United States group significantly underperformed on the CNT compared to all the Spanish-speaking groups. Next, we found the Guatemalan group underperformed on the CNT compared to the Argentinian, Mexican, and Colombian groups. Additionally, we found the Argentinian group outperformed the Mexican, Guatemalan, and United States groups on the CNT. No significant differences were found between the Argentinian group and Colombian group or the Mexican group and Colombian group on the CNT.
Conclusions:As predicted, the Argentinian group outperformed all the Spanish-speaking groups on the CNT except the Colombian group. Additionally, we found that the United States group underperformed on the CNT compared to all the Spanish-speaking groups. A possible explanation is that Spanish is not the official language in the United States compared to the rest of the Spanish-speaking groups. Meanwhile, a possible reason why the Argentinian and Colombian groups demonstrated better CNT performances might have been that it was less culturally sensitive than the United States, Mexican, and Guatemalan groups. Further analysis is needed with bigger sample sizes across other Spanish-speaking countries (e.g., Costa Rica, Chile) to evaluate what variables, if any, are influencing CNT performance.
Ten new insights in climate science 2023
- Mercedes Bustamante, Joyashree Roy, Daniel Ospina, Ploy Achakulwisut, Anubha Aggarwal, Ana Bastos, Wendy Broadgate, Josep G. Canadell, Edward R. Carr, Deliang Chen, Helen A. Cleugh, Kristie L. Ebi, Clea Edwards, Carol Farbotko, Marcos Fernández-Martínez, Thomas L. Frölicher, Sabine Fuss, Oliver Geden, Nicolas Gruber, Luke J. Harrington, Judith Hauck, Zeke Hausfather, Sophie Hebden, Aniek Hebinck, Saleemul Huq, Matthias Huss, M. Laurice P. Jamero, Sirkku Juhola, Nilushi Kumarasinghe, Shuaib Lwasa, Bishawjit Mallick, Maria Martin, Steven McGreevy, Paula Mirazo, Aditi Mukherji, Greg Muttitt, Gregory F. Nemet, David Obura, Chukwumerije Okereke, Tom Oliver, Ben Orlove, Nadia S. Ouedraogo, Prabir K. Patra, Mark Pelling, Laura M. Pereira, Åsa Persson, Julia Pongratz, Anjal Prakash, Anja Rammig, Colin Raymond, Aaron Redman, Cristobal Reveco, Johan Rockström, Regina Rodrigues, David R. Rounce, E. Lisa F. Schipper, Peter Schlosser, Odirilwe Selomane, Gregor Semieniuk, Yunne-Jai Shin, Tasneem A. Siddiqui, Vartika Singh, Giles B. Sioen, Youba Sokona, Detlef Stammer, Norman J. Steinert, Sunhee Suk, Rowan Sutton, Lisa Thalheimer, Vikki Thompson, Gregory Trencher, Kees van der Geest, Saskia E. Werners, Thea Wübbelmann, Nico Wunderling, Jiabo Yin, Kirsten Zickfeld, Jakob Zscheischler
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- Journal:
- Global Sustainability / Volume 7 / 2024
- Published online by Cambridge University Press:
- 01 December 2023, e19
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Non-technical summary
We identify a set of essential recent advances in climate change research with high policy relevance, across natural and social sciences: (1) looming inevitability and implications of overshooting the 1.5°C warming limit, (2) urgent need for a rapid and managed fossil fuel phase-out, (3) challenges for scaling carbon dioxide removal, (4) uncertainties regarding the future contribution of natural carbon sinks, (5) intertwinedness of the crises of biodiversity loss and climate change, (6) compound events, (7) mountain glacier loss, (8) human immobility in the face of climate risks, (9) adaptation justice, and (10) just transitions in food systems.
Technical summaryThe Intergovernmental Panel on Climate Change Assessment Reports provides the scientific foundation for international climate negotiations and constitutes an unmatched resource for researchers. However, the assessment cycles take multiple years. As a contribution to cross- and interdisciplinary understanding of climate change across diverse research communities, we have streamlined an annual process to identify and synthesize significant research advances. We collected input from experts on various fields using an online questionnaire and prioritized a set of 10 key research insights with high policy relevance. This year, we focus on: (1) the looming overshoot of the 1.5°C warming limit, (2) the urgency of fossil fuel phase-out, (3) challenges to scale-up carbon dioxide removal, (4) uncertainties regarding future natural carbon sinks, (5) the need for joint governance of biodiversity loss and climate change, (6) advances in understanding compound events, (7) accelerated mountain glacier loss, (8) human immobility amidst climate risks, (9) adaptation justice, and (10) just transitions in food systems. We present a succinct account of these insights, reflect on their policy implications, and offer an integrated set of policy-relevant messages. This science synthesis and science communication effort is also the basis for a policy report contributing to elevate climate science every year in time for the United Nations Climate Change Conference.
Social media summaryWe highlight recent and policy-relevant advances in climate change research – with input from more than 200 experts.
Thyroid Stimulating Hormone circadian variations in paranoid schizophrenic psychosis between acute and stable phases. A comparative study.
- A. Marcos-Rodrigo, A. L. Morera-Fumero, P. Abreu-Gonzalez, E. Diaz-Mesa, L. Fernandez-Lopez, J. J. Tascon-Cervera
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S186
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Introduction
Day-night changes in several molecules are studied as biomarkers of circadian rhytms (Morera-Fumero, A. L. et al. Progress in Neuro-Psychopharmacology and Biological Psychiatry 2017; 75 207-212). Circadian rhythmicity of the pituitary-thyroid axis has been proven in healthy individuals, with a Thyroid Stimulating Hormone (TSH) peak in serum around midnight and peaks during day hours (Bellastella, G. et al. Life 2021; 11(5), 426). A recent meta-analysis has reported differences in serum TSH levels between first-episode psychosis and multiple-episode schizophrenia (Misiak, B. et al. Progress in Neuro-Psychopharmacology and Biological Psychiatry 2021; 111, 110402). However, studies assessing quantitative circadian variations on TSH serum in schizophrenic patients are scant.
ObjectivesComparing serum TSH levels at two different times of the day (12:00 and 24:00 hours) and the differences between the acute (hospital admission) and recovered phase (hospital discharge) of the disease.
MethodsFourteen male patients (age 26,8±9,3 years) with the diagnosis of paranoid schizophrenia psychosis according to the DSM-IV partake in the study. Patients were admitted to the University Hospital of the Canary Islands psychiatric room because of acute relapse. Blood samples were taken in the first 24 h of admission and at 24 h. before discharge. All patients gave written consent to participate in the research study. Serum TSH was determined by ELISA methods. Paired sample t-tests were performed between TSH serum levels at admission and discharge at 12:00 and 24:00 hours. Statistical analyses were performed using IBM® SPSS® Statistics 25 software for MAC (IBM Corporation 1989, 2017).
ResultsThere were statistical differences between the 12:00 h and the 24:00 h of the TSH serum levels at admission (12:00: 145,856±156,961vs. 00:00: 192,006± 122,757, p = 0.04); TSH discharge, (12:00: 134,483±72,882vs 00:00: 244,214±148,697, p = 0.002). There were no statistical differences between the 12:00 TSH levels at admission and discharge (145,856±156,961 vs. 134,483± 72,882, p = 0.66). The 24:00 h comparison of TSH levels neither elicited significant results (admission: 192,006±122,757 vs. discharge: 244,214± 148,697, p = 0.15).
ConclusionsSchizophrenic patients undergo TSH serum changes in a circadian pattern during the acute and stable phases of the disease; nevertheless, they experience smaller deviations during the acute phase. Higher levels of TSH were observed around midnight, as it happens in healthy individuals, with higher peaks during the stable phase compared to the acute one.
Disclosure of InterestNone Declared
Association between adverse childhood experiences and the number of suicide attempts in lifetime
- J. Andreo-Jover, E. Fernandez-Jimenez, J. Curto-Ramos, N. Angarita-Osorio, N. Roberto, A. De la Torre-Luque, A. Cebria, M. Diaz-Marsa, M. Ruiz-Veguillla, J. B. Bobes Garcia, M. Fe Bravo Ortiz, V. Perez Solá
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S561-S562
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Introduction
Adverse childhood experiences (ACEs), defined as abuse, neglect, or a dysfunctional household in childhood, have been associated with suicidality (Fjeldsted et al., 2020). Every type of ACE has a direct impact on suicide ideation, self-harm and/or suicide attempt (Angelakis et al., 2019).
ObjectivesWe aim to quantify the association between types of ACEs (including emotional, physical, sexual abuse, and emotional and physical neglect) and the number of suicide attempts in lifetime.
MethodsWe included 748 patients who attempted suicide at least once. They were asked to complete the Columbia-Suicide Severity Rating Scale (CSSRS), and the Childhood Trauma Questionnaire-Short Form (CTQ-SF). Logistic regression models were run to assess the association between each ACE type and the number of suicide attempts.
ResultsPoisson univariate regression analyses show a linear trend in the relationship between having a higher number of suicide attempts and having suffered every ACE type in childhood (p<0.05). Our results show a lower percentage of previous suicide attempts among participants without ACEs, and an increasing tendency among patients with various types of ACEs. The rate of ACEs types is significantly higher in the group with previous suicide attempts than in the first-attempt group (p=0.000).
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ConclusionsThis study contributes to clarify the role of childhood trauma in the number of suicide attempts in lifetime. This has important implications for reducing suicide rates, and preventing future re-attempts. Further studies analysing every construct of childhood trauma may contribute to the detection of suicidal behaviour.
FundingsThis work was supported by the Instituto de Salud Carlos III (grant number: PI19/00941 SURVIVE) and co-funded by the European Union (grant numbers: COV20/00988, PI17/00768), the European Union’s Horizon 2020 research and innovation programme Societal Challenges (grant number: 101016127), and the Fundación Española de Psiquiatría y Salud Mental
AcknowledgementsSURVIVE project (PI19/00941)
KeywordsSuicide attempt, Adverse Childhood Experiences
ReferencesAngelakis, I., Gillespie, E. L., & Panagioti, M. (2019). Childhood maltreatment and adult suicidality: A comprehensive systematic review with meta-analysis. Psychological Medicine, 49(7), 1057-1078. https://doi.org/10.1017/S0033291718003823
Fjeldsted, R., Teasdale, T. W., & Bach, B. (2020). Childhood trauma, stressful life events, and suicidality in Danish psychiatric outpatients. Nordic Journal of Psychiatry, 74(4), 280-286. https://doi.org/10.1080/08039488.2019.1702096
Disclosure of InterestNone Declared
A cross-sectional descriptive study to assess the impact of the “open door” policy on patient satisfaction
- M. Campillo, J. Marti, L. Rius, S. Garcia Fernandez, M. Olivero, G. Sanchez Tomico, G. Brusco-Passalaqua, E. Pechuan, T. Vates, R. Sanchez
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S910
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Introduction
Since the beginning of the modern psychiatry the acute units have established a “locked door” policy. Some studies show that this condition may increase patient’s discomfort and affect the perception of health quality of care (Boyer L, 2009, Eur Psychiatry Dec;24(8):540-9). Lately, several European countries such as Germany, Switzerland and Spain are starting to implement the “open-door” policy but its impact on patient’s satisfaction is still unknown (Hochstrasser, L, Frontiers in Psychiatry, 9(57). https://doi.org/10.3389/fpsyt.2018.00057) .
ObjectivesTo help characterize the advantages of the “open-door” policy implemented in an acute inpatient psychiatric unit in order to assess the patient’s view of it.
MethodsThis is a descriptive observational study carried out at an inpatient psychiatric unit. Data were collected after the implementation of the open door policy on June 2019, assessing the patient satisfaction of 31 subjects who completed the SATISPSY-22 scale at the time of discharge. Results are described using the average and its standard deviation.
ResultsResults show scores in all items above 50 points, being the care team and the quality of care the most valued ones with 82 and 79 points respectively. The overall score is above 65 points (Fig. 1).
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ConclusionsIn line with previous studies, our data suggests that the main impact of the “open-door” policy implementation is on patients’ perception of the care, being Quality of care and satisfaction with the Staff the items with highest scores. This could be explained by patients trusting more in the Care team, which would help enhance the therapeutic relationship improving therapeutic adherence, treatment adequacy and the outcome. Nevertheless, the Feeling related to hospitalisation was found to be the item with the lowest score. This could mean strategies should focus on improving patient’s insight regarding their clinical state and their need to be admitted. Our study supports the hypothesis that open-door policy in acute psychiatric units is seen positively by patients and that further research should be carried.
Disclosure of InterestNone Declared
Brief psychotic episode in an adult without medical antecedents after suffering the indirect consequences of the Russian-Ukrainian war
- R. G. Troyano, M. Fariña Francia, E. Marimon Muñoz, I. Fernandez Marquez, E. Miranda Ruiz, M. Arroyo Ucar, J. Ramirez Gonzalez, S. Ferreiro Gonzalez, C. Hidalgo, A. Quispe
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S911
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Introduction
Almost nine months after the start of the war between Russia and Ukraine, millions of people have been affected physically, economically and mainly mentally. Those who have stayed in their homeland, and the ones that have chosen to emigrate to a safer place.
ObjectivesThe objective of this article is to assess the importance of social stressors in the onset of a brief psychotic episode, even in the absence of substance abuse or previous illnesses.
MethodsThe case of a 45-year-old woman is described, known by the Pediatric Emergency Service, for being the tutor of a patient who suffered from anxiety attacks, having emigrated without her parents from Ukraine together with her 5 brothers. The psychotic episode begins when our patient gets notified that she must abandon the custody of the girl, because she will have to go to Turkey with her legal guardians. The family explains the behavioral changes that the patient made and how the clinical picture worsened.
ResultsShe was admitted at the Hospital’s Psychiatry Service and antipsychotics treatment started. After 5 days, the episode had completely been solved.
ConclusionsIn conclusion, we highlight the importance of social problems in the development of a psychiatric pathology and the necessary elements to prevent it: family support network, fast and efficient care services and availability of hospital and pharmaceutical resources.
Disclosure of InterestNone Declared
Acute psychosis following corticosteroid administration for COVID-19 and Respiratory Syncytial Virus infection: A case study
- E. Miranda Ruiz, E. Marimon Muñoz, J. Ramirez Gonzalez, M. Fariña, R. G. Troyano, M. I. Arroyo Ucar, S. Ferreiro, I. Fernandez Marquez, C. Hidalgo, A. Quispe, L. Delgado
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S790
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Introduction
Steroids are a necessary treatment for hypoxic respiratory failure; however there are many side effects that should be taken into account. A 44- year-old-woman with asthma and no past psychiatric history was admitted due to COVID-19 pneumonia and Respiratory syncytial virus (RSV) infection, presenting hypoxic respiratory failure. After two days of intravenous methylprednisolone administration, the patient presented acute psychosis and agitation.
It has been previously described that steroid use can cause effects such as mania, anxiety, agitation, delirium and psychosis amongst other. However they are a necessary treatment in respiratory illnesses and are sometimes unavoidable.
ObjectivesThe aim was to examine the appropriate medical response to steroid induced psychosis in patients with acute hypoxic failure.
MethodsA bibliographical review was done in PubMed database searching recent cases of steroid induced psychosis using the words (“Steroid”, “Psychosis” and “COVID-19”).
ResultsAccording to literature, it has been shown that partial or complete reduction of steroid use and/or use of psychotropic has been successfully used to treat steroid induced psychosis. Following the research it was decided to reduce intravenous methylprednisolone dose from 20mg/ 8h to 20mg/12h and start oral haloperidol 5mg/8h the first 24h and reducing the dose progressively as the patient recovered. After the first 24 hours the patient presented adequate response to steroids as well as partial response to antipsychotic treatment; presenting no further agitation, absence of hallucinations and partial persistence of the persecutory delusion. A couple of days later there was complete remission of the psychotic symptoms and the patient was on the way to recovery from COVID-19 and RSV.
ConclusionsThere is evidence that suggests that medications such as steroids used to treat COVID-19 and other respiratory illnesses can lead to psychotic episodes. It is very important to pay attention to possible side effects when treating with steroids and evaluate the patient history as well as suggest having a follow up visit after the hospital discharge.
Disclosure of InterestNone Declared
EUROLD: preliminary results of the ecological study on suicide and its associated socioeconomic variables in people over 85 in Europe
- J. P. Carrasco Picazo, M. Rodríguez Ruzafa, G. Junquera Fernández, E. J. Aguilar
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S357
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Introduction
Approximately one person commits suicide every 40 seconds, resulting in more than 800,000 deaths per year worldwide. Regarding this phenomenon, it is necessary to highlight how suicide rates increase markedly with age. These reach their highest figures in people aged 85 years or older, and this increase is very worrying in certain geographical areas. Although there is extensive literature on the risk factors that influence at the individual level, the same cannot be said when the problem is analyzed at the population level.
ObjectivesThe study aims to review the entire Eurostat database, relating suicide data from different European countries to any possible variables that may influence suicide. In this pilot phase, certain socioeconomic variables were chosen based on criteria of suitability and availability of the information provided, selecting data from 2015, as it was the most recent year in which most countries reported their data on suicide in people over 85 years of age.
MethodsFirstly, a comparison was made of suicide rates in people over 85 years of age in relation to overall suicide rates in different European countries (suicide rate in people over 85 years of age divided by the total rate in the country). Secondly, socioeconomic variables that may be more strongly related to suicide in this age group in these European countries were studied. After calculating the conditional suicide rate in people over 85 years of age with respect to the overall suicide rate in each country (Fig. 1), Spearman correlations were performed between the conditional rates and different demographic variables, economic variables, social variables, and health variables.
ResultsConditional suicide rates in people over 85 years of age show a marked difference between southern and northern European countries. In the correlational analysis, several significant associations were found. Suicide in those over 85 years of age was associated with economic variables (social deprivation, economic impossibility to buy new clothes, impossibility to dedicate money for personal matters and Gini coefficient), demographic (old-age dependency ratio) and health (self-perceived health). After performing a multivariate regression with the variables that were significant in the Spearman correlation, included the variables “old-age dependency ratio (X1)” and “economic impossibility to buy new clothes (X2),” with a value of R-square = 0.612 and a value of p < 0.01.
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ConclusionsThe conclusions suggest that of the different variables studied, the great majority in which an association has been found belong to the field of economics, specifically poverty and economic inequality, and demographics, highlighting the old-age dependency ratio. Furthermore, marked north/south differences can be observed in the different European countries.
Disclosure of InterestNone Declared
Joint treatment of an acute manic episode and a multiple sclerosis debut: A case study
- M. Fariña Francia, E. Marimon Muñoz, E. Miranda Ruiz, I. Fernandez Marquez, R. G. Troyano, J. Ramirez Gonzalez, S. Ferreiro Gonzalez, C. Hidalgo Vazquez, A. Quispe Sulca, M. I. Arroyo Ucar
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S570-S571
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Introduction
Multiple Sclerosis (MS) is an autoimmune inflammatory disease that affects 1 in 1000 people. Given the association of MS to many affective disorders and specifically with Bipolar Disorder (BD), it is possible that a manic episode and an acute episode of MS may appear together. In these cases, it is difficult to decide whether it is necessary to start a corticosteroid regimen as treatment for the acute episode of MS, since it may worsen manic symptoms.
ObjectivesThe aim is to carry out a review of the existing information in relation to the comorbidity prevalence of MS and TB as well as the joint treatment of both illnesses, and to expose the details of a clinical case, regarding the treatment that was used in the acute psychiatry unit.
MethodsFirst, a search was done in PubMed database reviewing recent cases of steroid induced psychosis using the words (Multiple Sclerosis) AND (Bipolar Disorder). Subsequently, we describe the case of a 41-year-old patient who was admitted to the acute care unit from the emergency department presenting manic symptoms (megalomania, sensation of increased capacities and ideas of mystical content) associated to episodes of muscle weakness and gait disturbances. A screening Magnetic Resonance was performed in which lesions with inflammatory-demyelinating characteristics were detected, and was therefore catalogued as MS debut.
ResultsAfter carrying out a bibliographical review, we can conclude that studies recommend the inclusion of MS within the differential diagnosis of a first manic episode (1), performing neurological examinations, complete anamnesis and imaging tests, given that there is a high prevalence ratio of the comorbidity (2.95%) (2). It has been described that the use of lithium has a calming and neuroprotective agent that may be useful (3).
ConclusionsWe consider it of interest to describe the therapeutic approach to the case. After the introduction of Aripiprazole and Lithium, a short regimen of methylprednisolone in high doses was administered to treat the MS episode. When the treatment started, the patient presented a progressive improvement of the manic episode and motor symptoms. We observed that corticosteroid therapy did not worsen the manic symptoms or the patient’s evolution in this case. We intend to contribute by providing information on the joint management of these pathologies and we consider that it is necessary to continue studying this matter to be able to manage these cases in the most appropriate way.
Disclosure of InterestNone Declared
The therapeutic potential of psilocybin in depression resistant to psychotropic drugs
- J. Ramírez González, I. Fernández Márquez, S. Ferreiro González, E. M. Ruíz
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S834
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Introduction
The use of hallucinogens has accompanied the human being throughout history. In the 1970s, studies focused on the therapeutic potential of hallucinogens were blocked due to their misuse in the young population. At present, psilocybin is re-emerging as the center of attention due to its possible therapeutic potential in different psychiatric pathologies such as depression, anxiety or substance use.
ObjectivesThe main objective of this work has been to review recent studies on the therapeutic potential of psilocybin in drug-resistant depressive disorder.
MethodsFor the search for articles, the search strategy “psilocybin AND depression” was established in PUBMED. Regarding the inclusion criteria, it was established that they were recent articles, in Spanish or English and that the full text was freely accessible. On the other hand, those articles whose studies did not focus on humans and resistant depressive disorder were excluded. A total of 19 articles were obtained to review.
ResultsFocusing on Drug-Resistant Depressive Disorder, multiple studies have agreed that the administration of one or two microdoses (10-25mg) of psilocybin accompanied by psychotherapy improves the clinical picture for at least 6 months. These results make us feel optimistic in the search for new treatments in the field of mental health.
ConclusionsPsilocybin microdoses associated with psychotherapy improves depressive symptoms in a patient resistant to common antidepressants.
The psilocybin response in terms of improvement of the depressive symptoms persists after 6 months of evolution.
One or, in some two cases, two microdoses of psilocybin (10-25mg) are enough to obtain statistically significant results in the improvement of the depressive symptoms.
Disclosure of InterestNone Declared
Cyclothymia, bipolar disorder and multiple sclerosis: A case report
- M. D. P. Paz Otero, E. Lozano Bori, J. Sánchez Rodríguez, S. Puyal González, M. Fernández Fariña, F. Mayor Sanabria, A. Francos Ajona
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S703-S704
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Introduction
We present the case of a 49-year-old woman who was diagnosed with multiple sclerosis at the age of 19 and suffers from an affective disorder that has been evolving for years. This condition, for which she has been followed by psychiatry and psychology for more than ten years, consists of alternating periods of hypomania lasting weeks and phases in which frank depressive symptomatology predominates, with no phases of euthymia in between and with a predominance of severe deterioration of her functionality at both poles.
Objectives(1) We will review the term cyclothymia and explore the concept of “cyclothymic temperament” advocated by some authors, in order to be able to understand the dimension of the present case and reformulate its approach.
(2) The relationship between multiple sclerosis and bipolar spectrum disorders will be covered, reviewing the current knowledge in this regard and relating it to the patient’s symptomatology.
MethodsA review of the patient’s clinical history will be carried out, taking into account her life history, the complementary tests performed as well as the multiple therapeutic approaches tried over the last few years.
Likewise, a bibliographic review of the available scientific literature will be carried out in relation to the diagnosis of cyclothymia or bipolar disorder type II, the controversial term “cyclothymic temperament”, and the relationship that these diagnoses have with the diagnosis of Multiple Sclerosis.
Results(1) Our patient could fit into what many authors define as a cyclothymic temperament, fulfilling, in certain episodes, the criteria that the manuals propose for bipolar disorder type II.
(2) 2.1 The prevalence of bipolar affective disorder in MS is approximately twice as high as in the general population (rates of 0.3-2.4%). 2.2 Patients with MS have higher scores in cyclothymic and hyperthymic temperament than the control group. 2.3 Certain drugs generally used in BD also seem to have a beneficial effect on MS.
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ConclusionsThe reformulation of the concept of cyclothymia would allow us to recognize in our patient a basic temperament of long evolution that would be the substrate on which different factors have subsequently influenced, such as antidepressant drugs or multiple sclerosis. In addition, it is necessary to know the association between BD and MS, in order to be able to offer an adequate treatment, contemplating some pharmacological options such as Lithium or some Atypical Antipsychotics, given the beneficial effect both for the affective disorder and for the neurological process.
Disclosure of InterestNone Declared
Delusions of body control: Psychopathological description of a case.
- C. M. Gil Sánchez, J. A. Salomón Martínez, E. Fernández García
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S999-S1000
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Introduction
A considerable number of patients with schizophrenia suffer from somatic passivity or delusions of control. So much so, that Schneider considered them as part of the first-rank symptoms.
In these cases, patients can think that feelings, impulses, thoughts, or actions are controlled or imposed by an external force.
ObjectivesThe objective is to make a psychopathological description of this symptomatology, based on a case report with Anomalous bodily experiences.
MethodsIn this study, we describe the case of a patient with disorder of self-experience. We have conducted a systematic review of the descriptions published to date, regarding this case.
ResultsWe present the case of a 21-year-old patient who had gone to the emergency services three times for somatic pathology (described as dysesthetic and algic sensations in the throat, stomach and testicles).
In the psychopathological exploration, a delusional narrative is observed, as he refers that these sensations are being provoked by external people, with the aim of harming him.
The patient reports that these people are causing an increase in salivation in his salivary glands, for which he spits repeatedly.
He explains that these people can control his organs using an influencing machine, which in this case consists of a microchip implanted at the retroauricular area, from which they give orders and insult him at the same time.
In this case, a good symptom response was achieved with intramuscular Aripiprazole.
ConclusionsIn the experiences of passivity, the patient experiences one event as if it were not his, but inserted into his self from the outside.
In the case of somatic passivity, there is a belief that there are external influences acting on the body. In this case, there was probably a kinesthetic hallucination coupled with an experience of passivity.
Similar to other published cases, this patient complained of being controlled and impaired by some form of contemporary technology. Delusions of control are often associated with delusional explanations about how thought or body can be controlled, in this case, through a microchip.
Disclosure of InterestNone Declared
Relationship between elimination disorders and internalizing-externalizing problems in children: A systematic review and meta-analysis
- C. Aymerich, B. Pedruzo, M. Pacho, M. Laborda, J. Herrero, M. Bordenave, G. Salazar de Pablo, E. Sesma, A. Fernandez-Rivas, A. Catalan, M. Á. González-Torres
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S328-S330
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Introduction
Elimination disorders (ED) include enuresis, defined as wetting from 5 years, and encopresis, defined as soiling from 4 years onwards after organic causes are excluded. They are highly prevalent in childhood and often associated with clinically relevant comorbid psychological disorders. However, no systematic review or meta-analysis examines their co-occurrence with internalizing and externalizing problems in children.
ObjectivesThe aim of this study is to determine if, and to what extent, children with ED show higher internalizing and externalizing problems than their healthy peers.
MethodsA multistep literature search was performed from database inception until May 1st, 2022. PRISMA/MOOSE-compliant systematic review (PROSPERO: CRD42022303555) were used to identify studies reporting on internalizing and/or externalizing symptoms in children with an ED and a healthy control (HC) group. First, a systematic review was provided. Second, where data allowed for it, a quantitative meta-analysis using random effects model was conducted to analyze the differences between the ED and the HC groups for internalizing and externalizing symptoms. Effect size was standardized mean difference. Meta-regression analyses were conducted to examine the effect of sex, age, and study quality. Funnel plots were used to detect a publication bias. Where found, the trim and fill method was used to correct it.
Results36 articles were included, 32 of them reporting on enuresis (n=3244; mean age=9.4; SD=3.4; 43.84% female) and 7 of them on encopresis (n=214; mean age=8.6; SD=2.3; 36.24% female) [Image 1]. The ED group presented significantly lower self-concept (ES:0.42; 95%CI: [0.08;9.76]; p=0.017) and higher symptom scores for thought problems (ES:-0.26; 95%CI: [-0.43;-0.09]; p=0.003), externalizing symptoms (ES:-0.20; 95%CI: [-0.37;-0.03]; p=0.020), attention problems (ES:-0.37; 95%CI: [-0.51;-0.22]; p=0.0001), aggressive behaviour (ES:-0.33; 95%CI: [-0.62;-0.04]; p=0.025) and social problems (ES: 0.39; 95%CI: [-0.58;-0.21]; p=0.0001) [Image 2]. Significant publication biases were found across several of the studied domains [Image 3]. No significant effect of sex, age or quality of the study score was found.
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ConclusionsChildren with an elimination disorder may have significant internalizing and externalizing problems, as well as impaired self-concept. It is recommendable to screen for them in children with ED and provide interventions as appropriate.
Disclosure of InterestNone Declared