ArticleBMC public health2025
Modeling the incidence rate of hospital re-admissions within 30 days and associated factors among patients with advanced HIV disease in Uganda: comparison of the performance of binary logistic and count regression models.
Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionAdvanced HIV Disease (AHD) remains a major driver of HIV-related morbidity, readmissions, and mortality, particularly in Sub-Saharan Africa. AHD affects People Living with HIV (PLHIV) with CD4 < 200 cells/mm³ and/or WHO stage 3 or 4, or all children under five years living with HIV. Globally, approximately 18% of AHD patients are readmitted within 30 days post-discharge; rates in Sub-Saharan Africa have been found to reach up to 52.9%. In Uganda, despite Uganda’s 2020 rollout of the AHD Package, data on 30-day readmissions among AHD patients remains limited. Understanding the incidence rate of 30-day readmissions is critical to improving quality of care and reducing system burden.
methodsThe study used retrospective cohort study design using secondary data of AHD patients aged ≥ 12 years admitted at Kiruddu National Referral Hospital (KNRH) between March 2020 to July 2022. Patients discharged alive were included, excluding in-hospital deaths. Model performance for the binary logistic regression and count regression (Poisson and Negative binomial) models was compared using Bayesian Information Criteria (BIC). The final binary logistic regression model was built using backward stepwise selection with statistical significance determined at a 95% confidence level.
resultsAmong 855 AHD patients stratified by ART categories (active, defaulted, naïve), the overall 30-day readmission incidence rate was 6.8 (95% CI: 6.7–6.9) per 100 months of observation. AHD patients aged 25–39, 40–49, and 50 + years, active on ART had lower odds of 30-day readmission compared to those aged 12–24 years, (aOR: 0.12, 95% CI: 0.03–0.43; aOR: 0.08, 95% CI: 0.02–0.37; aOR: 0.14, 95% CI: 0.03–0.63). Patients with candidiasis and/or ≥ 3 comorbidities were more likely to be readmitted (aOR: 3.65, 95% CI: 1.02–13.04; aOR: 7.02, 95% CI: 1.32–37.48), after adjusting for other factors. These associations remained consistent across the entire sample of AHD patients.
conclusionYounger age (12–24 years), candidiasis, and ≥ 3 comorbidities were associated with higher risk of 30-day readmission, among AHD patients active on ART and the entire sample of AHD patients. Binary logistic regression outperformed count models.
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