Out-of-Catchment Area Antiretroviral Therapy Initiation and its Factors among HIV Positive People on Lifelong Therapy in Western Ethiopia: Implementation of Decentralized ART Services.

Background: Decentralized human immunodeficiency virus (HIV) is a model adopted to improve access to antiretroviral therapy (ART) within communities and mitigate the burden of HIV treatment and care on health care facility. In Ethiopia, these services help HIV clients fully benefit from ART as they are able to access ART within their catchment areas. However, HIV clients still travel out of their catchment areas to commence the ART. Thus, this study aimed to assess the magnitude of out-of-catchment area ART initiation and its associated factors among people living with HIV (PLWHIV) in Western Ethiopia. Methods: This cross-sectional study was conducted among 423 PLWHIV from November 25 to December 30, 2025, at Nekemte Comprehensive Specialized Hospital. A systematic sampling method was used to recruit the study participants. Epi Data 3.1 and STATA 14.0 were used for data entry and analysis, respectively. Logistic regression analysis was computed to identify factors associated with out-of-catchment ART initiation among PLWHIV. Variables with a P value <.25 from the bivariable analysis were entered into the multivariable analysis. Adjusted odds ratio (AOR) with 95% confidence interval (CI) and P value <.05 were used to determine a significant association. Results: A total of 423 PLHIV were included in the study. The mean age of study participants was 33.43 ± 9.79 years. One-fifth (22%) of the participants-initiated ART out of their catchment area with 95% (CI: 18.28-26.20). Participants who did not disclose their HIV (AOR = 4.39, 95% CI = 2.45-7.87), tested through voluntary counseling and testing (AOR = 3.99, 95% CI = 2.21-7.19), knowledgeable about HIV/AIDS (AOR = 2.15, 95% CI = 1.18-3.93), using traditional healing (AOR = 1.91, 95% CI = 1.03-3.55), being female (AOR = 2.42, 95% CI = 1.36-4.32), and perceived stigma (AOR = 3.41, 95% CI = 1.88-6.18) were significantly associated with out-of-catchment ART initiation. Conclusion and Recommendation: A substantial number of PLWHIV in study area had initiated ART outside their designated catchment areas. To address this, it is crucial to enhance HIV serostatus disclosure, combat discrimination associated with HIV/AIDS, and promote decentralized HIV care and ART services.