Kept clinical visits, as scheduled in the first 6 months of antiretroviral treatment, determine long-term treatment outcomes in people living with HIV: a large retrospective cohort study in China

Abstract

Background Routine HIV clinical monitoring is vital for people living with HIV (PLHIV) after treatment initiation. The relationship between clinical visits during the first 6 months after initial antiretroviral therapy (ART) and long-term, HIV-related mortality and service retention was investigated. Methods: A retrospective ART observational research database was established based on de-identified data extracted from 6959 records of adult HIV-positive registrants held by Hunan CDC (Center for Disease Control and Prevention) between 2003 and 2013. Results: During the first 6 months of initiation into ART, 2364 (34.0%) of PLHIV had completed four scheduled visits, meeting the Chinese ART clinical monitoring standards. From 6 months onwards (up to 36 months), this group had the lowest HIV-related mortality (4.4%) compared with those who had more or less than four kept visits in the first 6 months [one visit only: adjusted hazards ratio (AHR) = 3.15, 95% CI 2.24–3.88; two visits: AHR = 2.24, 95% CI 1.80–3.01; three visits: AHR = 1.86, 95% CI 1.69–2.05; and >4 visits: AHR = 1.37, 95% CI 1.11–1.72]. Those with less than three kept visits were also at increased risk of cohort loss to follow up (ART discontinuation, prolonged service disengagement or death). A myriad of personal, clinical and social factors are identified to be associated with increased HIV-related mortality and clinical retention. Conclusions: Enabling PLHIV to complete four scheduled clinical visits during the first 6 months of ART initiation, as recommended by the Chinese CDC, is critical.