Barriers to adherence and retention in public and private healthcare according to patients and health workers

The National Program of AIDS guarantees universal access to antiretroviral medication, yet people receiving treatment through the public healthcare system do not achieve an undetectable viral load in the same rate than patients in the private system. This qualitative study aims to identify factors associated with adherence and retention in the HIV-cascade of care at public and private setting from Buenos Aires, based on patients and healthcare workers' perceptions.Qualitative data from 12 semi-structured interviews with key informants and 4 focus groups of patients and healthcare workers from the public and private systems were recorded. Transcripts were coded and analyzed, using the QRS Nvivo9® software for qualitative data analysis, into set themes on adherence.Patients and healthcare workers of both systems agree on the importance of HIV-related stigma, professional-patient relationship and communication, and the division of treatment-related responsibilities as fundamental aspects for adherence and retention in the HIV-cascade of care. Differences in the manner these factors interact were observed between healthcare systems. Structural barriers are presented as the main adherence barrier in the public system.The need for interventions focused on the doctor-patient dyad considering the features of each healthcare is highlighted in order to facilitate patient engagement in adherence.