Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Strong propensity for HIV transmission among men who have sex with men in Vietnam: behavioural data and sexual network modelling
Stockholms universitet, Samhällsvetenskapliga fakulteten, Sociologiska institutionen. The Institute for Futures Studies, Sweden.
Visa övriga samt affilieringar
2014 (Engelska)Ingår i: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 4, nr 1, artikel-id e003526Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Objectives Survey data from men who have sex with men (MSM) in Asian cities indicate ongoing and drastic increases in HIV prevalence. It is unknown which behavioural factors are most important in driving these epidemics. We aimed to analyse detailed sexual behaviour data among MSM in Vietnam and to model HIV transmission using improved assumptions on sexual network structure. Setting Vietnam. Participants Internet-using men who had ever had sex (any type) with a man, aged 18years and living in Vietnam. The study was cross-sectional, population-based and performed in 2012, using online respondent-driven sampling. The Internet-based survey instrument was completed by 982 participants, of which 857 were eligible. Questions included sociodemography and retrospective sexual behaviour, including number of unprotected anal sex (UAS) acts per partner. Primary and secondary outcome measures Estimated basic reproductive number over 3months as a function of transmission risk per UAS act; frequency distributions of number of UAS partners and UAS acts during last 3months. Results 36% (CI 32% to 42%) reported UAS at least once during the last 3months. 36% (CI 32% to 41%) had ever taken an HIV test and received the result. UAS partner numbers and number of UAS acts were both highly skewed and positively correlated. Using a weighted configuration model, taking into account partner numbers, frequency of UAS and their correlations, we estimated the basic reproductive number (R0) over 3months. The results indicated rapid transmission over a wide range of values of per-act transmissibility. Conclusions Men with multiple partners had unexpectedly high UAS frequency per partner, paired with low HIV testing rates. The study highlights the importance of collecting data on frequency of UAS acts and indicates the need to rapidly scale-up HIV prevention services and testing opportunities for MSM in Vietnam.

Ort, förlag, år, upplaga, sidor
2014. Vol. 4, nr 1, artikel-id e003526
Nyckelord [en]
Vietnam, Men who have sex with men, Sexual networks
Nationell ämneskategori
Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi
Identifikatorer
URN: urn:nbn:se:su:diva-104021DOI: 10.1136/bmjopen-2013-003526ISI: 000334311200004OAI: oai:DiVA.org:su-104021DiVA, id: diva2:719961
Forskningsfinansiär
Sida - Styrelsen för internationellt utvecklingssamarbete
Anmärkning

AuthorCount:5;

Tillgänglig från: 2014-05-27 Skapad: 2014-05-27 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Sök vidare i DiVA

Av författaren/redaktören
Liljeros, Fredrik
Av organisationen
Sociologiska institutionen
I samma tidskrift
BMJ Open
Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 151 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf