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Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey

INTRODUCTION: Literature on the age at first anal intercourse (AFAI) among men who have sex with men (MSM) is limited. We aimed to elucidate the evolution of AFAI and the factors associated with early AFAI, based on a large sample of MSM in China. METHODS: We collected information on the demographic...

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Autores principales: Zou, Huachun, Xu, Junjie, Hu, Qinghai, Yu, Yanqiu, Fu, Gengfeng, Wang, Zhe, Lu, Lin, Zhuang, Minghua, Chen, Xi, Fu, Jihua, Zhou, Zhenhai, Geng, Wenqing, Jiang, Yongjun, Shang, Hong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International AIDS Society 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4981647/
https://www.ncbi.nlm.nih.gov/pubmed/27515018
http://dx.doi.org/10.7448/IAS.19.1.20792
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author Zou, Huachun
Xu, Junjie
Hu, Qinghai
Yu, Yanqiu
Fu, Gengfeng
Wang, Zhe
Lu, Lin
Zhuang, Minghua
Chen, Xi
Fu, Jihua
Zhou, Zhenhai
Geng, Wenqing
Jiang, Yongjun
Shang, Hong
author_facet Zou, Huachun
Xu, Junjie
Hu, Qinghai
Yu, Yanqiu
Fu, Gengfeng
Wang, Zhe
Lu, Lin
Zhuang, Minghua
Chen, Xi
Fu, Jihua
Zhou, Zhenhai
Geng, Wenqing
Jiang, Yongjun
Shang, Hong
author_sort Zou, Huachun
collection PubMed
description INTRODUCTION: Literature on the age at first anal intercourse (AFAI) among men who have sex with men (MSM) is limited. We aimed to elucidate the evolution of AFAI and the factors associated with early AFAI, based on a large sample of MSM in China. METHODS: We collected information on the demographics and sexual behaviours of MSM from seven large cities in China from 2012 to 2013. Blood samples were collected for HIV serology. AFAI was calculated for MSM born in different time periods. Linear regression models were used to explore factors associated with younger AFAI. RESULTS: A total of 4491 MSM (median age: 27 years, median AFAI: 21 years) were recruited. Median AFAI decreased steadily from 33 years of age among MSM born from 1940 to 1959 to 18 years of age among MSM born from 1990 to 1996. Factors significantly associated with younger AFAI included more recent birth cohort, being unmarried or living with a male partner, being a student or industry worker, the gender of the first partner being male, and using Rush or Ecstasy in the past six months (p for all <0.05). CONCLUSIONS: AFAI among MSM in China has considerably decreased over the past few decades. The decreasing AFAI and factors associated with younger AFAI point to the necessity of early sex education and control of recreational drug use among MSM in China.
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spelling pubmed-49816472016-08-18 Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey Zou, Huachun Xu, Junjie Hu, Qinghai Yu, Yanqiu Fu, Gengfeng Wang, Zhe Lu, Lin Zhuang, Minghua Chen, Xi Fu, Jihua Zhou, Zhenhai Geng, Wenqing Jiang, Yongjun Shang, Hong J Int AIDS Soc Research Article INTRODUCTION: Literature on the age at first anal intercourse (AFAI) among men who have sex with men (MSM) is limited. We aimed to elucidate the evolution of AFAI and the factors associated with early AFAI, based on a large sample of MSM in China. METHODS: We collected information on the demographics and sexual behaviours of MSM from seven large cities in China from 2012 to 2013. Blood samples were collected for HIV serology. AFAI was calculated for MSM born in different time periods. Linear regression models were used to explore factors associated with younger AFAI. RESULTS: A total of 4491 MSM (median age: 27 years, median AFAI: 21 years) were recruited. Median AFAI decreased steadily from 33 years of age among MSM born from 1940 to 1959 to 18 years of age among MSM born from 1990 to 1996. Factors significantly associated with younger AFAI included more recent birth cohort, being unmarried or living with a male partner, being a student or industry worker, the gender of the first partner being male, and using Rush or Ecstasy in the past six months (p for all <0.05). CONCLUSIONS: AFAI among MSM in China has considerably decreased over the past few decades. The decreasing AFAI and factors associated with younger AFAI point to the necessity of early sex education and control of recreational drug use among MSM in China. International AIDS Society 2016-08-10 /pmc/articles/PMC4981647/ /pubmed/27515018 http://dx.doi.org/10.7448/IAS.19.1.20792 Text en © 2016 Zou H et al; licensee International AIDS Society http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zou, Huachun
Xu, Junjie
Hu, Qinghai
Yu, Yanqiu
Fu, Gengfeng
Wang, Zhe
Lu, Lin
Zhuang, Minghua
Chen, Xi
Fu, Jihua
Zhou, Zhenhai
Geng, Wenqing
Jiang, Yongjun
Shang, Hong
Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey
title Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey
title_full Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey
title_fullStr Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey
title_full_unstemmed Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey
title_short Decreasing age at first anal intercourse among men who have sex with men in China: a multicentre cross-sectional survey
title_sort decreasing age at first anal intercourse among men who have sex with men in china: a multicentre cross-sectional survey
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4981647/
https://www.ncbi.nlm.nih.gov/pubmed/27515018
http://dx.doi.org/10.7448/IAS.19.1.20792
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