Pompong, Pheello Daniel2025-10-072025-10-072024https://hdl.handle.net/10566/21030Background: Globally, it was estimated that about 3.2 million adolescents and young people (AYP) aged 15-24 years were living with human immunodeficiency virus (HIV) in 2022. The loss to follow-up (LTFU), challenges with retention to HIV care, and mortality among adolescents and young people living with HIV are prevalent in sub-Saharan Africa. Factors such as lack of support from the health system, school environments, and caregivers, as well as behavioural and emotional issues associated with adolescence, affect adherence and retention in care among adolescents living with HIV. The HIV programme in Lesotho is making efforts to provide accessible HIV treatment services to people living with HIV. However, the recent national antiretroviral therapy (ART) cohort analysis showed a suboptimal retention rate among adolescents and young people living with HIV aged 15-24 years initiated on HIV treatment. Aim: To determine factors associated with the LTFU and mortality among adolescents and young people living with HIV aged 15-24 years receiving antiretroviral therapy in Lesotho.enLoss to follow upIncidenceAdolescents and young peopleAntiretroviral therapyThesis