Evidence map›Paper›PMID 27515018›Full record

ArticleJournal of the International AIDS Society2016

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

Huachun Zou, Junjie Xu, Qinghai Hu, Yanqiu Yu, Gengfeng Fu, Zhe Wang, Lin Lu, Minghua Zhuang, Xi Chen, Jihua Fu and 4 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Journal of the International AIDS Society, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Human papillomavirus prevalence among men who have sex with men in China: a systematic review and meta-analysis.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2021
    Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 9 institutions in 2 countries.

Huachun ZouDepartment of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Yuexiu District, Guangzhou, P.R. China.
Junjie XuKey Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.
Qinghai HuKey Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.
Yanqiu YuKey Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.
Gengfeng FuJiangsu Provincial Centers for Disease Control and Prevention, Nanjing, China.
Zhe WangHe'nan Provincial Centers for Disease Control and Prevention, Zhengzhou, Zhengdong, China.
Lin LuYunnan Provincial Centers for Disease Control and Prevention, Kunming, China.
Minghua ZhuangShanghai Municipal Centers for Disease Control and Prevention, Shanghai, China.
Xi ChenHu'nan Provincial Centers for Disease Control and Prevention, Changsha, China.
Jihua FuShandong Provincial Centers for Disease Control and Prevention, Jinan, China.
Zhenhai ZhouNational Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Changping District, Beijing, China.
Wenqing GengKey Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.
Yongjun JiangKey Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.
Hong ShangKey Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.
China Medical University · CNHenan Provincial Center for Disease Control and Prevention · CNHunan Provincial Center for Disease Control and Prevention · CNJiangsu Provincial Center for Disease Control and Prevention · CNNational Health and Family Planning Commission · CNShandong Center for Disease Control and Prevention · CNShanghai Municipal Center For Disease Control Prevention · CNUNSW Sydney · AUYunnan Center for Disease Control And Prevention · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLiterature 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.

methodsWe 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.

resultsA 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).

conclusionsAFAI 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.

Indexed as

Homosexuality, MaleSexual BehaviorAdolescentAdultAgedAge FactorsAnal CanalChinaCross-Sectional StudiesHIV InfectionsHumansMaleMiddle AgedPrevalenceRisk FactorsSexual PartnersAFAIbirth cohortChinaHIVMSMrecreational drug

Identifiers

PMID27515018
PMCPMC4981647
OpenAlexW2506091087

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.