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Burden of infectious disease studies in Europe and the United Kingdom: a review of methodological design choices
- Periklis Charalampous, Juanita A. Haagsma, Lea S. Jakobsen, Vanessa Gorasso, Isabel Noguer, Alicia Padron-Monedero, Rodrigo Sarmiento, João Vasco Santos, Scott A. McDonald, Dietrich Plass, Grant M. A. Wyper, Ricardo Assunção, Elena von der Lippe, Balázs Ádám, Ala'a AlKerwi, Jalal Arabloo, Ana Lúcia Baltazar, Boris Bikbov, Maria Borrell-Pages, Iris Brus, Genc Burazeri, Serafeim C. Chaintoutis, José Chen-Xu, Nino Chkhaberidze, Seila Cilovic-Lagarija, Barbara Corso, Sarah Cuschieri, Carlotta Di Bari, Keren Dopelt, Mary Economou, Theophilus I. Emeto, Peter Fantke, Florian Fischer, Alberto Freitas, Juan Manuel García-González, Federica Gazzelloni, Mika Gissler, Artemis Gkitakou, Hakan Gulmez, Sezgin Gunes, Sebastian Haller, Romana Haneef, Cesar A. Hincapié, Paul Hynds, Jane Idavain, Milena Ilic, Irena Ilic, Gaetano Isola, Zubair Kabir, Maria Kamusheva, Pavel Kolkhir, Naime Meriç Konar, Polychronis Kostoulas, Mukhtar Kulimbet, Carlo La Vecchia, Paolo Lauriola, Miriam Levi, Marjeta Majer, Enkeleint A. Mechili, Lorenzo Monasta, Stefania Mondello, Javier Muñoz Laguna, Evangelia Nena, Edmond S. W. Ng, Paul Nguewa, Vikram Niranjan, Iskra Alexandra Nola, Rónán O'Caoimh, Marija Obradović, Elena Pallari, Mariana Peyroteo, Vera Pinheiro, Nurka Pranjic, Miguel Reina Ortiz, Silvia Riva, Cornelia Melinda Adi Santoso, Milena Santric Milicevic, Tugce Schmitt, Niko Speybroeck, Maximilian Sprügel, Paschalis Steiropoulos, Aleksandar Stevanovic, Lau Caspar Thygesen, Fimka Tozija, Brigid Unim, Hilal Bektaş Uysal, Orsolya Varga, Milena Vasic, Rafael José Vieira, Vahit Yigit, Brecht Devleesschauwer, Sara M. Pires
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- Journal:
- Epidemiology & Infection / Volume 151 / 2023
- Published online by Cambridge University Press:
- 09 January 2023, e19
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This systematic literature review aimed to provide an overview of the characteristics and methods used in studies applying the disability-adjusted life years (DALY) concept for infectious diseases within European Union (EU)/European Economic Area (EEA)/European Free Trade Association (EFTA) countries and the United Kingdom. Electronic databases and grey literature were searched for articles reporting the assessment of DALY and its components. We considered studies in which researchers performed DALY calculations using primary epidemiological data input sources. We screened 3053 studies of which 2948 were excluded and 105 studies met our inclusion criteria. Of these studies, 22 were multi-country and 83 were single-country studies, of which 46 were from the Netherlands. Food- and water-borne diseases were the most frequently studied infectious diseases. Between 2015 and 2022, the number of burden of infectious disease studies was 1.6 times higher compared to that published between 2000 and 2014. Almost all studies (97%) estimated DALYs based on the incidence- and pathogen-based approach and without social weighting functions; however, there was less methodological consensus with regards to the disability weights and life tables that were applied. The number of burden of infectious disease studies undertaken across Europe has increased over time. Development and use of guidelines will promote performing burden of infectious disease studies and facilitate comparability of the results.
Is treatment-resistant schizophrenia associated with distinct neurobiological callosal connectivity abnormalities?
- Idaiane Batista Assunção-Leme, André Zugman, Luciana Monteiro de Moura, João Ricardo Sato, Cinthia Higuchi, Bruno Bertolucci Ortiz, Cristiano Noto, Vanessa Kiyomi Ota, Sintia Iole Belangero, Rodrigo A. Bressan, Nicolas A. Crossley, Andrea P. Jackowski, Ary Gadelha
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- Journal:
- CNS Spectrums / Volume 26 / Issue 5 / October 2021
- Published online by Cambridge University Press:
- 10 August 2020, pp. 545-549
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Background
Resistance to antipsychotic treatment affects up to 30% of patients with schizophrenia. Although the time course of development of treatment-resistant schizophrenia (TRS) varies from patient to patient, the reasons for these variations remain unknown. Growing evidence suggests brain dysconnectivity as a significant feature of schizophrenia. In this study, we compared fractional anisotropy (FA) of brain white matter between TRS and non–treatment-resistant schizophrenia (non-TRS) patients. Our central hypothesis was that TRS is associated with reduced FA values.
MethodsTRS was defined as the persistence of moderate to severe symptoms after adequate treatment with at least two antipsychotics from different classes. Diffusion-tensor brain MRI obtained images from 34 TRS participants and 51 non-TRS. Whole-brain analysis of FA and axial, radial, and mean diffusivity were performed using Tract-Based Spatial Statistics (TBSS) and FMRIB’s Software Library (FSL), yielding a contrast between TRS and non-TRS patients, corrected for multiple comparisons using family-wise error (FWE) < 0.05.
ResultsWe found a significant reduction in FA in the splenium of corpus callosum (CC) in TRS when compared to non-TRS. The antipsychotic dose did not relate to the splenium CC.
ConclusionOur results suggest that the focal abnormality of CC may be a potential biomarker of TRS.
Is there an association between cortical thickness, age of onset, and duration of illness in schizophrenia?
- Idaiane Batista Assunção Leme, Ary Gadelha, João Ricardo Sato, Vanessa Kiyomi Ota, Jair de Jesus Mari, Maria Isabel Melaragno, Marilia de Arruda Cardoso Smith, Sintia Iole Nogueira Belangero, Rodrigo Affonseca Bressan, Andrea Parolin Jackowski
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- Journal:
- CNS Spectrums / Volume 18 / Issue 6 / December 2013
- Published online by Cambridge University Press:
- 06 June 2013, pp. 315-321
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Objective
Several studies have shown cortical volume loss in frontotemporal regions in schizophrenia patients, and it is known that these reductions may be associated with disease symptoms and cognitive deficits. The aim of this study was to investigate possible cortical thickness correlations in frontotemporal regions in relation to age at onset and duration of illness.
MethodsOne hundred forty-eight schizophrenia patients (97 males; age and SD 36.30 ± 10.06) and 87 (57 males; age and SD 36.48 ± 10.10) age-matched healthy subjects underwent a brain MRI scan. Cortical segmentation and surface statistical analysis were performed using the FreeSurfer software package. Results were corrected for multiple comparisons using the Monte Carlo method considering a cluster-corrected Type I Error of 5%.
ResultsCompared to controls, schizophrenia patients presented significant cortical thinning in the frontotemporal, parietal, and occipital cortices. No correlation between prefrontal cortex thickness and duration of illness in patients with schizophrenia or between frontotemporal cortical thickness and age at onset was found. However, a significant interaction between age and diagnosis was observed on frontal cortical thickness with patients presenting a thinner cortex than expected for age.
ConclusionAlthough there was no correlation between age of onset and duration of illness with brain volume, our findings suggest that there is an accelerated cortical loss in schizophrenia, thus reinforcing the progressive processes of the disease.