Effect of dolutegravir-based first-line antiretroviral therapy on weight and body mass index among adult people living with HIV on follow up at health facilities in Hawassa city administration, Southern Ethiopia: a retrospective cohort study.

A significant interaction effect was observed between ART regimens and time in predicting weight and BMI gain.Starting ART with TLD was associated with a significant weight gain and treatment-emergent overweight/obesity than the NNRTI-based therapies.ART initiating with TLD had 1.9 times higher odds of >10% body weight gain than the NNRTI-based therapies.