Health inequalities of 57,541 prisoners in Korea: a comparison with the general population

Ten-year differences in the prevalence and related factors of depression and suicidal behavior in Korean older adults: A comparison of representative nationwide studies for mental disorders in 2011 and 2021

PURPOSE

As the baby boomer generation moves into old age, the characteristics of the older population are changing. This study aimed to compare the prevalence of depression and suicidal behavior and examine the different impacts of sociodemographic risk factors based on two nationwide cross-sectional studies conducted a decade apart.

METHODS

We compared representative samples of participants aged 60-74 years from two nationwide surveys in 2011 and 2021. Depression and suicidal behavior were assessed using the Korean version of the Composite International Diagnostic Interview, and the prevalence rates were compared according to study year and gender. We used multivariate logistic regression to determine how sociodemographic risk factors affected depression and suicidal behavior in each study period.

RESULTS

The prevalence of depression in older adults was higher in 2021 than in 2011, with a notable increase among older men. The prevalence of suicidal behavior was slightly decreased but not statistically significant. In 2011, being female was the only risk factor for depression; however, several sociodemographic factors, including non-married, low income, and high education level, were identified as risk factors for depression in 2021. The impact of low-income status on both depression and suicidal behavior was twice as much in 2021 as it was in 2011.

CONCLUSION

The prevalence of depression has increased compared to a decade ago, especially among older men. Recently, sociodemographic risks have become more important in late-life depression and suicidal behavior. Mental health promotion for older adults needs to consider sociocultural characteristics and environmental changes.

Burden of diabetes in correctional facilities: A global systematic review and meta-analysis

Background

Diabetes mellitus presents significant public health challenges worldwide. While its prevalence and management in the general population have been extensively studied, comprehensive research on diabetes among incarcerated individuals is lacking. This study aims to conduct a systematic review and meta-analysis to determine the prevalence of diabetes within the prison population.

Methods

The systematic review included studies reporting on the prevalence of diabetes in prison populations. Searches were conducted in PubMed, Web of Science, and EMBASE from 2000 to November 4, 2023, with an update on December 15, 2023. Nested Knowledge web software was utilized for screening and data extraction. Quality assessment was conducted using the JBI tool. A meta-analysis was performed using a random-effects model in R software version 4.3.

Results

Thirty-three studies were included, encompassing 807,617 participants, with 67,291 reported as patients with diabetes. The pooled prevalence of diabetes in prison populations was found to be 7.1% (95% CI: 4.9% to 10.1%), exhibiting high heterogeneity (I2 = 100%). Subgroup analysis revealed significant geographical variability: the United States had a prevalence of 9% (95% CI: 4 %to 17 %), Italy 5% (95% CI: 0% to 40 %), Iran 10% (95% CI: 7 % to 15 %), and Egypt 21% (95% CI: 14% to 28 %). Notable variations in prevalence were also observed in countries like France, Australia, Taiwan, India, the UK, Spain, Brazil, and Sub-Saharan Africa. An LFK index of -3.3 indicated the presence of publication bias.

Conclusion

The study reveals that diabetes mellitus is a significant health concern in prisons, with a prevalence of 7.1%, comparable to that in the general population. The marked variability across studies indicates the challenges of diabetes management in correctional settings. These findings highlight the need for tailored healthcare strategies, considering prisons' unique challenges and risk factors.

Effects of the COVID-19 pandemic on people experiencing incarceration: a systematic review

OBJECTIVE

To assess the effect of the COVID-19 pandemic on people experiencing incarceration (PEI), focusing particularly on clinical outcomes compared with the general population.

DESIGN

Systematic review with narrative synthesis in accordance with the Centre for Reviews and Dissemination's good practice guidelines.

DATA SOURCES

Medline, Social Policy and Practice, Criminology Connection, ASSIA, EMBASE, SCOPUS, Web Of Science, CINAHL, Cochrane Library, Cochrane COVID-19 reviews, COVID-19 Evidence Reviews and L*OVE COVID-19 Evidence databases were searched up to 21 October 2022.

ELIGIBILITY CRITERIA FOR SELECTING STUDIES

We included studies presenting data specific to adults ≥18 years experiencing incarceration, with exposure to SARS-CoV-2 infection. All studies with a comparison group, regardless of study design and country were included. Studies with no comparison group data or not measuring clinical outcomes/health inequalities were excluded. Studies focussing on detained migrants, forensic hospitals, prison staff and those not in English were also excluded.

DATA EXTRACTION AND SYNTHESIS

Two reviewers extracted data and assessed risk of bias. Data underwent narrative synthesis using a framework analysis based on the objectives, for infection rates, testing, hospitalisation, mortality, vaccine uptake rates and mental health outcomes. There was no scope for meta-analysis, due to the heterogeneity of evidence available.

RESULTS

4516 references were exported from the databases and grey literature searched, of which 55 met the inclusion criteria. Most were from the USA and were retrospective analyses. Compared with the general population, PEI were usually found to have higher rates of SARS-CoV-2 infection and poorer clinical outcomes. Conflicting data were found regarding vaccine uptake and testing rates compared with the general population. The mental health of PEI declined during the pandemic. Certain subgroups were more adversely affected by the COVID-19 pandemic, such as ethnic minorities and older PEI.

CONCLUSION

PEI have poorer COVID-19 clinical outcomes than the general public, as shown by largely low-quality heterogenous evidence. Further high-quality research of continuing clinical outcomes and appropriate mitigating interventions is required to assess downstream effects of the pandemic on PEI. However, performing such research in the context of incarceration facilities is highly complex and potentially challenging. Prioritisation of resources for this vulnerable group should be a focus of national policy in the event of future pandemics.

PROSPERO REGISTRATION NUMBER

CRD42022296968.

Prevalence of latent tuberculosis infection among participants of the national LTBI screening program in South Korea - A problem of low coverage rate with current LTBI strategy

Background

The Government of South Korea launched a national preemptive latent tuberculosis infection (LTBI) screening program in 2016, including more than 1. 6 million population in congregate settings. The objective of this study was to analyze LTBI prevalence and its risk factors in each setting. Additionally, the proportion of LTBI pool covered by the current national LTBI strategy was investigated.

Methods

Database for results of interferon gamma release assay (IGRA), X-ray, and baseline demographic information was linked with National Health Information Database, national tuberculosis (TB) surveillance database, and national contact investigation database. Participants were categorized into three groups: Group A, workers of postpartum care centers, social welfare facilities and educational institutions; Group B, first year students in high school and out-of-school youths; and Group C, inmates of correctional facilities. Relative risks of LTBI by sex, age, place of living, income level, and comorbidities were calculated.

Results

A total of 444,394 participants in Group A, 272,224 participants in Group B, and 11,511 participants in Group C who participated in the national LTBI screening program between 2017 and 2018 were included, with LTBI prevalence of 20.7, 2.0, and 33.2%, respectively. Age was the single most important risk factor in Group A and Group C. Low-income level was another risk factor commonly identified in all groups. Among participants with positive IGRA results, 2.7, 4.4, and 3.3% in Groups A, B and C, respectively, had past TB exposure history since 2013. Current LTBI guideline targeting high or moderate TB risk disease covered 6.5, 0.6, and 1.1% of participants with positive IGRA results in Groups A, B and C, respectively.

Conclusion

Only a small proportion of participants with positive IGRA results could be covered by the current LTBI strategy. Expansion of LTBI strategy by identifying further high-TB risk group in the general population is required.