Various epidemiologic studies conducted in Spain have found prevalences among IVDUs between 40% and 89.6% 12, 13 while a 66% prevalence has been cited in Australia 14, and between prevalences of 12% and 70% has been reported in Thailand 15.
De acuerdo con diferentes estudios epidemiológicos, en España se encontró prevalencia entre el 40 y 89,6% en UDIV 12, 13, en Australia 66% 14 y del 12 a 70% en Tailandia 15.