Fig. 1From: HIV screening and retention in care in people who use drugs in Madrid, Spain: a prospective studyPrevalence of HIV infection in people who use drugs (PWUD) from Cañada Real Galiana. a Population stratified by homeless; b population stratified by injection drug users; c population stratified by decades of drug use. PWID people who injected drugs; HIV human immunodeficiency virus; HIV-Ab antibodies against HIV; P-value, level of significanceBack to article page