<p>Top 5 non-AIDS-defining causes of admission.</p>

Non–AIDS-defining causes predominated across all periods (61.8%), with a progressive increase from the pre-pandemic to the post-pandemic period (55.3%, 63.1%, and 70.1%, respectively). A sustained increase in hospitalizations due to mental health disorders was observed over time (4.3%, 4.6%, and 7.8%). Among AIDS-defining conditions, tuberculosis (15.8%) and <i>Pneumocystis jirovecii</i> pneumonia (14.9%) were the most frequent.

Hospitalizations due to opportunistic infections were associated with longer length of stay (median 14 vs. 6 days; p < 0.001) and higher 30-day mortality (8.6% vs. 2.6%; p < 0.001) compared with non–AIDS-defining hospitalizations, with a proportional increase in events attributable to tuberculosis and Kaposi sarcoma.</p> <p>Conclusions</p><p>An epidemiological transition towards non-AIDS-defining causes of hospitalization is evident, comparable to patterns observed in high-income countries; however, a substantial burden of tuberculosis, Kaposi sarcoma, and late HIV diagnosis persists, likely reflecting ongoing structural gaps in HIV care.

Following the COVID-19 pandemic, an increase in hospitalizations related to mental health disorders was observed. Taken together, these findings highlight the urgent need to strengthen early diagnosis, active case finding, and tuberculosis prevention, as well as to enhance the implementation of comprehensive care models that improve retention in care for PLWH in low- and middle-income countries.</p></div>