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Lung cancer patients have a higher risk of suicide, but the long-term patterns and how they differ by treatment type have not been fully characterized. To investigate longitudinal suicide risk among lung cancer patients who underwent surgery compared to matched controls and to examine variations over time by treatment modality and patient characteristics.
Methods
We identified 37,215 individuals newly diagnosed with lung cancer between 2010 and 2017 who underwent lung resection within 1 year of diagnosis, along with 1:3 age- and sex-matched controls. Subdistribution hazard ratios (sHRs) and 95% confidence intervals (CIs) for suicide were estimated using a competing risk analysis.
Results
The cohort (mean age 64.0 years; 62.5% male) was followed for a mean of 7.6 years. There were 154 suicides among lung cancer patients (incidence rate 0.6 per 1,000 person-years). Suicide risk peaked during the first year after surgery (sHR 1.88, 95% CI 1.23–2.87) and declined in subsequent years. Patients who underwent surgery alone had a higher risk in the first year (sHR 1.66, 95% CI 1.02–2.69), which gradually decreased over time. In contrast, patients treated with adjuvant chemotherapy or radiotherapy experienced a substantially higher initial risk (e.g., sHR 7.00, 95% CI 3.00–16.37 for surgery + radiotherapy) and maintained a moderate increase in suicide risk even beyond 5 years. Subgroup analyses showed an especially elevated first-year suicide risk among younger adults aged 20–49 years, males, and never smokers.
Conclusions
Suicide risk for lung cancer patients is highest during the first postoperative year, particularly for those who receive multimodal therapy, or are younger adults, males, or never smokers. These findings emphasize the need to prioritize early, tailored psychosocial support in survivorship care to help mitigate long-term suicide risk.
Although often associated with ageing, disability is becoming increasingly prevalent among young adults. While disability can pose a substantial psychological burden for young adults on critical pathways to establish the foundations for their future, the mental health risks faced by this population remain underexplored.
Aims
This study aimed to (1) assess the association between disability – including its presence, severity and type – and the risk of depressive and anxiety disorders, and (2) examine whether this association varies across sociodemographic factors, health behaviours and comorbidities in a young adult population.
Methods
We conducted a population-based cohort study using linked data from the National Disability Registry and the National Health Insurance Database of South Korea. A total of 6,058,290 individuals aged 20–39 years who underwent health check-ups between 2009 and 2012 were followed through 2022. Cox proportional hazards models were used to estimate adjusted hazard ratios (aHRs) for depressive and anxiety disorders.
Results
Individuals with disabilities had significantly higher risks of depressive (aHR: 1.58, 95% CI: 1.55–1.60) and anxiety disorders (aHR: 1.50, 95% CI: 1.42–1.59). Increased risks were consistently observed across various disability types with the highest risk observed for mental health-related disabilities in depression (aHR: 4.98, 95% CI 4.62–5.37) and epilepsy-related disabilities in anxiety disorders (aHR: 12.05, 95% CI 8.73–16.63). Subgroup analyses revealed stronger associations among individuals in their 20s, low-income groups, non-smokers and those abstaining from alcohol, compared to their respective counterparts.
Conclusions
Young adults with disabilities, a population that has been relatively overlooked in policy discussions, warrant greater policy attention in relation to their mental health.
Despite the increasing implementation of consultation-based hospice palliative care teams in tertiary hospitals of Korea, there is limited research on their impact on self-determination respect rates. Understanding this impact is crucial for improving end-of-life care practices and respecting patient autonomy. The aim of this study is to assess the trends in self-determination respect rates regarding advance care planning before and after the introduction of a consultation-based hospice palliative care team in a tertiary hospital.
Methods
A retrospective observational study was conducted using medical records from a tertiary hospital in Korea from March 2018 to December 2023. The study included all patients aged 19 years and older with medical records at a tertiary hospital during the specified period. We examined the characteristics of patients referred to the palliative care team, the effects of the consultation-based hospice palliative care team on the completion rates of advanced care planning, and changes in self-determination respect rates.
Results
Following the introduction of the consultation-based hospice palliative care team, 411 patients were referred. The proportion of patients with completed advance care planning increased from 27.0% to 60.6% (p < 0.001). The overall number of advanced care planning completions and the self-determination respect rate also showed a marked increase, particularly from 2021 to 2022, when the respect rate spiked from 27.6% to 43.2%.
Significance of Results
Introduction of a consultation-based hospice palliative care team improved the respect for patient self-determination in end-of-life care decisions. These findings support the integration of hospice care teams in tertiary hospitals to enhance early and informed end-of-life decision-making.
Diagnosis of cancer can be a stressful and life-threatening event that is associated with suicide risk.
Aims
To investigate how suicide risk changes over time after cancer diagnosis, and, specifically, when it becomes similar to that of matched controls.
Method
Using a nationwide population-based database, we identified a total of 171 474 individuals aged ≥20 years newly diagnosed with cancer between 2009 and 2017 and 1:5 age- and sex-matched controls. We calculated adjusted hazard ratios (aHRs) with 95% confidence intervals of suicide in cancer patients for the full period and with a 1- to 5-year lag period.
Results
During a mean follow-up of 6.7 years, 0.3% of cancer patients (491 of 171 474) died by suicide, with incidence rates of 0.4 per 1000 person-years. Cancer patients had higher risk of suicide (aHR 1.64, 95% CI 1.48–1.81) compared with matched controls. Suicide risk remained higher than that of matched controls with a 1- or 2-year lag period (aHR 1.38, 95% CI 1.23–1.55 and aHR 1.32, 95% CI 1.16–1.50, respectively), but there was no significant difference with a 5-year lag period (aHR 1.13, 95% CI 0.93–1.38). However, those with haematologic cancers were at higher suicide risk than matched controls even 5 years after diagnosis (e.g. aHR 9.26, 95% CI 1.30–65.87 for Hodgkin lymphoma).
Conclusions
In cancer patients, suicide risk remained elevated for several years after diagnosis, but decreased over time and became similar to that of matched controls after 5 years. However, the temporal pattern varied by cancer type, and suicide risk remained high for patients with haematological cancers. Suicide risk screening is necessary from the time of cancer diagnosis, even in long-term survivors.
Cancer is a life-changing experience, and side effects from treatment can make it difficult for survivors to return to their pre-cancer “normal life.” We explored the “new normal” and barriers to achieving it among lung cancer survivors who underwent surgery.
Methods
Semi-structured interviews were conducted with 32 recurrence-free non–small cell lung cancer survivors. We asked survivors how life had changed; how they defined the “new normal”; barriers that prevent them from achieving a “normal” life; and unmet needs or support for normalcy. Thematic analysis was performed.
Results
Defining “new normal” subjectively depends on an individual’s expectation of recovery: (1) being able to do what they want without pain or discomfort; (2) being able to do activities they could accomplish before their surgery; and (3) being able to work, earn money, and support their family. We found that (1) persistent symptoms, (2) fear of cancer recurrence, (3) high expectations in recovery, and (4) psychosocial stress and guilty feelings were barriers to achieving a “new normal.” The needs and support for normalcy were information on expected trajectories, postoperative management, and support from family and society.
Significance of results
Survivors defined the “new normal” differently, depending on their expectations for recovery. Informing survivors about the “new normal” so they could expect possible changes and set realistic goals for their life after cancer. Health professionals need to communicate with survivors about expectations for “normality” from the beginning of treatment, and it should be included in comprehensive survivorship care.
Body weight variability (BWV) negatively affects the incidence and outcomes of various diseases, but the nature of the association between BWV and depression remains unclear. In this study, we aimed to test the hypothesis that BWV is associated with the risk of new-onset depression.
Methods
Data from a nationwide population-based cohort in the Korean National Health Insurance Service database were analyzed for 6 598 570 adults with no history of depression and reports of at least three health examinations. BWV was estimated using variability independent of the mean indices and divided into quartiles (Q1 lowest, Q4 highest BWV). Cox proportional hazard models were applied to assess the risk of depression according to the quartile of BWV.
Results
The incident rate for depression from Q1 to Q4 of BWV was 20.7, 20.3, 20.8, and 22.2 per 1000 person-years, respectively. BWV, especially high BWV, was associated with an increased risk of depression after adjusting for age, sex, smoking, alcohol consumption, physical activity, income, diabetes mellitus, hypertension, and dyslipidemia. The hazard ratio (HR) of new-onset depression was highest in Q4 relative to Q1 in the total population (HR 1.12, p < 0.0001) and was higher in women than in men (HR 1.72 v. 1.16, p < 0.0001). In stratified analyses, regardless of obesity or weight change status at baseline, the risk of depression was increased when bodyweight fluctuated highly during follow-up.
Conclusions
High BWV was associated with an increased risk of depression. Further studies need to evaluate the role of high BWV with respect to the onset of depression.
Spirituality is what gives people meaning and purpose in life, and it has been recognized as a critical factor in patients’ well-being, particularly at the ends of their lives. Studies have demonstrated relationships between spirituality and patient-reported outcomes such as quality of life and mental health. Although a number of studies have suggested that spiritual belief can be associated with mortality, the results are inconsistent. We aimed to determine whether spirituality was related to survival in advanced cancer inpatients in Korea.
Method
For this multicenter study, we recruited adult advanced cancer inpatients who had been admitted to seven palliative care units with estimated survival of <3 months. We measured spirituality at admission using the Korean version of the Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being (FACIT-sp), which comprises two subscales: meaning/peace and faith. We calculated a Kaplan-Meier curve for spirituality, dichotomized at the predefined cutoffs and medians for the total scale and each of the two subscales, and performed univariate regression with a Cox proportional hazard model.
Result
We enrolled a total of 204 adults (mean age: 64.5 ± 13.0; 48.5% female) in the study. The most common primary cancer diagnoses were lung (21.6%), colorectal (18.6%), and liver/biliary tract (13.0%). Median survival was 19.5 days (95% confidence interval [CI95%]: 23.5, 30.6). Total FACIT-sp score was not related to survival time (hazard ratio [HR] = 0.981, CI95% = 0.957, 1.007), and neither were the scores for its two subscales, meaning/peace (HR = 0.969, CI95% = 0.932, 1.008) and faith (HR = 0.981, CI95% = 0.938, 1.026).
Significance of results
Spirituality was not related to survival in advanced cancer inpatients in Korea. Plausible mechanisms merit further investigation.
This study aimed to investigate the influences of age, education, and gender on the two total scores (TS-I and TS-II) of the Consortium to Establish a Registry for Alzheimer's Disease Neuropsychological assessment battery (CERAD-NP) and to provide normative information based on an analysis for a large number of elderly persons with a wide range of educational levels.
Methods:
In the study, 1,987 community-dwelling healthy volunteers (620 males and 1,367 females; 50–90 years of age; and zero to 25 years of education) were included. People with serious neurological, medical, and psychiatric disorders (including dementia) were excluded. All participants underwent the CERAD-NP assessment. TS-I was generated by summing raw scores from the CERAD-NP subtests, excluding Mini-Mental State Examination and Constructional Praxis (CP) recall subtests. TS-II was calculated by adding CP recall score to TS-I.
Results:
Both TS-I and TS-II were significantly influenced by demographic variables. Education accounted for the greatest proportion of score variance. Interaction effect between age and gender was found. Based on the results obtained, normative data of the CERAD-NP total scores were stratified by age (six overlapping tables), education (four strata), and gender.
Conclusions:
The normative information will be very useful for better interpretation of the CERAD-NP total scores in various clinical and research settings and for comparing individuals’ performance of the battery across countries.
A nonvolatile memory device with the multi-layered SiC nanocrystals embedded in the SiO2 dielectrics for long-term data storage was fabricated and its electrical properties were evaluated. The SiC nanocrystals were formed by using post thermal annealing process. The transmission electron microscope analysis showed the multi-layered SiC nanocrystals between the tunnel and the control oxide layers. The average size and density of the SiC nanocrystals were approximately 5 nm and 2×1012 cm-2, respectively. The memory window of nonvolatile memory devices with the multi-layered of SiC nanocrystals was about 2.7 V during the operations at ±10 V for 700 ms, and then it was maintained around at 1.1 V after 105 sec.
To compare the epidemiology and genetic relatedness of Candida tropicalis isolates causing bloodstream infection (BSI) in two hospitals.
Setting:
Two tertiary-care hospitals in Korea.
Methods:
A retrospective molecular epidemiologic analysis using pulsed-field gel electrophoresis (PFGE) was performed with 49 C. tropicalis isolates from sporadic cases of BSI. The isolates were collected from 27 patients at Chonnam National University Hospital (CUH) during a 6-year period and 22 patients at Asan Medical Center (AMC) during a 2-year period.
Results:
Based on the PFGE patterns, the average similarity value (SAB) for the 27 isolates from CUH was 0.84 ± 0.08, which was significantly higher than that for the 22 isolates from AMC (0.78 ± 0.06; P < .001). Of the 49 strains from patients at the 2 hospitals, 9 isolates were placed into 3 subtypes with SAB values of 1.0, which indicated that they were identical. All 9 of these strains were isolated from CUH patients, and each type strain was isolated sporadically during a period ranging from 4 months to 3 years. On comparison of the clinical characteristics of the patients of the 2 hospitals, the CUH strains were isolated more frequently from non-neutropenic patients and patients with central venous catheter–related fungemia; cases from CUH had a better outcome than those from AMC (P < .05).
Conclusions:
These data show that the clinical and epidemiologic characteristics of C. tropicalis fungemia may differ markedly among hospitals and that some cases of C. tropicalis fungemia may be caused by endemic strains within a hospital.
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