title: Population-based prevalence of hepatitis B and C virus, HIV, syphilis, gonorrhoea and chlamydia in male injection drug users in Lagos, Nigeria.
abstract: There is little research on injecting drug use in Nigeria. We investigated the prevalence of HIV, hepatitis B and C, and sexually transmitted infections (STIs) among male injection drug users (IDUs) in Lagos. Male IDUs (N = 328) were recruited through respondent-driven sampling. Participants completed an interview about their sexual and injecting risk behaviours and were tested for hepatitis B surface antigen (HBV), hepatitis C antibody (HCV), HIV and syphilis, as well as genital chlamydia and gonorrhoea infections. Three-quarters of IDUs (74%) reported injecting drugs in the past one month although most did not share needles (92%) and the majority obtained sterile needles from pharmacists (87%). Estimated HBV, HCV, HIV, syphilis, gonorrhoea and chlamydia prevalences were 7.8%, 7.7%, 0.9%, 1.9%, 0.0%, and 3.7%, respectively. The burden of HIV is presently low among IDUs in Lagos. Changes in accessibility to sterile needles at pharmacists would likely have a deleterious effect on IDUs' health. HBV vaccination and HCV prevention programmes for IDUs are urgently needed.
authors: Population Council, Washington, DC, USA.
authors: W
authors: W
authors: Tun
authors: L
authors: L
authors: Vu
authors: S B
authors: SB
authors: Adebajo
authors: L
authors: L
authors: Abiodun
authors: M
authors: M
authors: Sheehy
authors: A
authors: A
authors: Karlyn
authors: J
authors: J
authors: Njab
authors: B
authors: B
authors: Ahonsi
authors: B K
authors: BK
authors: Issa
authors: O
authors: O
authors: Idogho
mesh_terms: D000293:Adolescent; D000328:Adult; D002689:Chlamydia; D002690:Chlamydia Infections / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D055030:Drug Users / Q000706:statistics & numerical data*; D006069:Gonorrhea / Q000453:epidemiology*; D015658:HIV Infections / Q000453:epidemiology*; D006509:Hepatitis B / Q000453:epidemiology*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006526:Hepatitis C / Q000453:epidemiology*; D018937:Hepatitis C Antibodies / Q000032:analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria / Q000453:epidemiology; D011159:Population Surveillance; D015995:Prevalence; D012307:Risk Factors; D012725:Sexual Behavior; D012959:Socioeconomic Factors; D015819:Substance Abuse, Intravenous / Q000453:epidemiology*; D013587:Syphilis / Q000453:epidemiology*; D055815:Young Adult
chemical_list: D006514:Hepatitis B Surface Antigens; D018937:Hepatitis C Antibodies
keywords: AIDS; HIV; Nigeria; chlamydia; epidemiology; gonorrhoea; hepatitis B; hepatitis C; injecting drug users; injection drug users; prevalance; sexually transmitted infection; syphilis