Silicosis and silicotuberculosis among respiratory hospital admissions: A cross-sectional survey in northern Tanzania

Background

There is little evidence describing respiratory disease among 40.5 million small-scale miners worldwide.

Objectives

To describe the prevalence and clinical characteristics of adult respiratory inpatients with silicosis and silicotuberculosis in a tertiary hospital in Tanzania that serves a small-scale mining region.

Methods

In this retrospective, cross-sectional survey, patient files from admissions between 2010 and 2020 were opportunistically selected and included if a respiratory diagnosis had been made.

Results

Of 223 patients with respiratory conditions, 32 (14.3%; 95% confidence interval (CI) 10.0 - 19.6) were diagnosed with silicosis and 17 (7.6%; 95% CI 4.5 - 11.9) with silicotuberculosis. Mining was the most frequent occupation in those with silicosis (n=15/32; 46.9%) and silicotuberculosis (n=15/17; 88.2%). Of those with silicosis or silicotuberculosis, 26/49 (53.1%) were aged <45 years.

Conclusion

Our study suggests that silicosis and silicotuberculosis are common among male and female respiratory inpatients with occupational exposure. The study highlights the role of occupational exposures in respiratory disease in developing economies.

Study synopsis

What the study adds. This retrospective, cross-sectional survey describes the prevalence of silicosis and silicotuberculosis among adult respiratory inpatients admitted to a tertiary hospital in northern Tanzania. It is the first study to describe the prevalence and characteristics of respiratory inpatients with silicosis and silicotuberculosis in a small-scale mining region of Africa. A high prevalence of silicosis (14.3%) and silicotuberculosis (7.6%) was found. Patients were often aged <45 years, and the majority required oxygen therapy.Implications of the findings. The high prevalence of advanced silicosis and silicotuberculosis in miners presenting at a young age raises concerns about high occupational silica exposures and, importantly, suggests a need for community-based research, which our team is planning to undertake.

Antisocial personality disorder and associated factors among incarcerated in prison in Dessie city correctional center, Dessie, Ethiopia: a cross-sectional study

BACKGROUND

Antisocial Personality Disorder (ASPD) describes individuals who engage in repetitive aggressiveness, deceitfulness, impulsivity, and unlawful behavior. It has a broad impact on families, relationships, and social functioning, and also people with ASPD make heavy demands on the judicial system, social and mental health services. Even though ASPD is a common problem among incarcerated in prisons, it is not well studied in developing countries including Ethiopia. Therefore, this study aimed to determine the prevalence and associated factors of ASPD among incarcerated in prison in Dessie city correctional center.

METHOD

A cross-sectional study design was conducted among 320 incarcerated in prison at Dessie correctional center, Ethiopia. The study subjects were selected by using a simple random sampling technique and the Diagnostic and Statistical Manual 5th text revision (DSM-5) was used to measure ASPD using face-to-face interviews. Social support was assessed using the Oslo social support scale (Oslo-3). The collected data were checked for completeness and entered into Epi-data Version 3.1 and then exported to SPSS version 26 for analysis. Bivariate and multivariable logistic regressions were done to identify factors related to antisocial personality disorder. In multivariable logistic regression variables with a p-value, less than 0.05 were considered significant and, adjusted OR (AOR) with 95% CI was used to present the strength of the association.

RESULTS

The current study showed that the prevalence of ASPD was found to be 30.6% (95% CI:25.6,35.9). In a multivariable analysis, being single [AOR = 2.33; 95%CI (1.39,3.89)], monthly income of 1000-2000 ETB (Ethiopian Birr) [AOR = 2.12; 95%CI (1.163,3.45)], reconviction [AOR = 2.37; 95%CI (1.08,5.19)], and alcohol use [AOR = 2.00; 95% CI (1.16,3.45)] were discovered to be predictors of antisocial personality disorder.

CONCLUSION

This study revealed that nearly one-third of incarcerated in prison were found to have an anti-social personality disorder. Being single, 1000-2000 ETB income, reconviction, and alcohol users were variables that are independent predictors of ASPD. A screening and intervention program is required and further research should be needed.