A synthesis of convenience survey and other data to estimate undiagnosed HIV infection among men who have sex with men in England and Wales

摘要

Background Hard-to-reach population subgroups are typically investigated using convenience sampling, which may give biased estimates. Combining information from such surveys, a probability survey and clinic surveillance, can potentially minimize the bias. We developed a methodology to estimate the prevalence of undiagnosed HIV infection among men who have sex with men (MSM) in England and Wales aged 16–44 years in 2003, making fuller use of the available data than earlier work.