Drug users stick together': HIV testing in peer-based drop-in centres among people who inject drugs in Thailand

Introduction Although there is a well recognised need for novel approaches to HIV testing, particularly for marginalised populations at high risk for HIV infection, there remains a dearth of information on the acceptability of peer-based HIV testing among people who inject drugs (PWID). Methods: Between July 2011 and June 2012, 22 in-depth interviews were conducted with PWID participating in the Mitsampan Community Research Project in Bangkok, Thailand. Semi-structured interviews explored willingness to access rapid HIV testing delivered by a healthcare professional or a trained peer within peer-based drop-in centres. Audio-recorded interviews were transcribed verbatim and a thematic analysis was conducted. Results: All participants indicated interest in accessing rapid HIV testing by a healthcare professional at peer-based drop-in centres due to the advantage of receiving immediate results. Experiencing stigma and discrimination by healthcare workers and wanting to avoid administrative barriers in hospitals were also reported as reasons for why PWID preferred HIV testing in peer-based settings. Peer support and shared lived experiences were repeatedly mentioned as benefits of peer-based testing. However, some concerns regarding peer-delivered testing were expressed and included a fear of peers' violating confidentiality and concerns regarding peers' qualifications for conducting an HIV test. Conclusion: Many PWID in this study sample noted the value of a peer-based approach to receiving testing and indicated their willingness to access rapid HIV testing in peer-based drop-in centres. The findings from this study highlight the potential for novel peer-based methods to complement existing HIV services in an effort to improve access to testing among this population.