scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zhen Xing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Behaviors ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is associated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex. Methods Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection. Results A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD, practicing RD before sex, the interaction between RD and CRAI using a shower hose for RD and other risk factors, practicing RD after sex, CRAI, using nitrite inhalants, main sexual role with males as bottom and syphilis infection. Conclusions RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that further studies should be conducted to understand the detailed mechanism between RD and increased HIV prevalence.

scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2021 ◽  
Author(s):  
ZhenXing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Behaviors ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background: Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is associated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex.Methods: Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection.Results: A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD, practicing RD before sex, the interaction between RD and CRAI using a shower hose for RD and other risk factors, practicing RD after sex, CRAI, using nitrite inhalants, main sexual role with males as bottom and syphilis infection.Conclusions: RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that further studies should be conducted to understand the detailed mechanism between RD and increased HIV prevalence.

scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2020 ◽  
Author(s):  
ZhenXing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Sexual Behaviors ◽  
Interaction Effect ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background: Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is correlated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex.Methods: Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection.Results: A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD (adjusted odds ratio (AOR), 2.8; 95% confidence interval (CI), 1.4-5.5), practicing RD before sex (AOR, 2.3; 95% CI, 1.2–4.3), practicing RD after sex (AOR, 1.8; 95% CI, 1.0–3.1), using a shower hose for RD (AOR, 3.5; 95% CI, 1.1–13.0), CRAI (AOR, 2.9; 95% CI, 1.6–5.5), and an interaction effect of RD and CRAI (AOR = 4.2; 95 % CI, 2.2- 8.1) in the most recent anal intercourse.Conclusions: RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that cohort studies should be conducted to confirm the causal relationship between RD and acquiring HIV.

scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2020 ◽  
Author(s):  
ZhenXing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Sexual Behaviors ◽  
Interaction Effect ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background: Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is associated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex.Methods: Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection.Results: A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD (adjusted odds ratio (AOR), 2.8; 95% confidence interval (CI), 1.4-5.5), practicing RD before sex (AOR, 2.3; 95% CI, 1.2–4.3), practicing RD after sex (AOR, 1.8; 95% CI, 1.0–3.1), using a shower hose for RD (AOR, 3.5; 95% CI, 1.1–13.0), CRAI (AOR, 2.9; 95% CI, 1.6–5.5), and an interaction effect of RD and CRAI (AOR = 4.2; 95 % CI, 2.2- 8.1) in the most recent anal intercourse.Conclusions: RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that further studies should be conducted to understand the detailed mechanism between RD and increased HIV prevalence.

scholarly journals Rectal douching before sexual intercourse and inappropriate douching tool use associated with increased HIV infection among men who have sex with men: a cross-sectional study from Shenyang, China

2020 ◽  
Author(s):  
ZhenXing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Sexual Behaviors ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Receptive Anal Intercourse ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Rectal Douching ◽  
Sex With Men

Abstract Background: Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is correlated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex.Methods: Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection.Results: A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%). The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD (adjusted odds ratio (AOR), 2.8; 95% confidence interval (CI), 1.4-5.5), practicing RD before sex (AOR, 2.3; 95% CI, 1.2–4.3), practicing RD after sex (AOR, 1.8; 95% CI, 1.0–3.1), using a shower hose for RD (AOR, 3.5; 95% CI, 1.1–13.0), condomless receptive anal intercourse (CRAI) (AOR, 2.9; 95% CI, 1.6–5.5), and using nitrite inhalants (AOR, 2.8; 95 % CI, 1.6-5.1) in the most recent anal intercourse.Conclusions: RD is popular among Chinese MSM. Improper noncommercial RD tools increase the rates of HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM, and we recommend that better tools be offered to assist in RD in order to decrease the risk of acquiring HIV.

HIV prevalence and risk behaviours among men who have sex with men using geosocial networking smartphone applications: a cross-sectional study in Beijing, China (Preprint)

2021 ◽  
Author(s):  
Xianlong Ren ◽  
Binbin Zhang ◽  
Fei Yu ◽  
Jason Ong ◽  
Chenglin Hong ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Risky Behaviors ◽  
Cross Sectional Study ◽  
Hiv Prevalence ◽  
Consistent Condom ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Geosocial Networking ◽  
Sex With Men

BACKGROUND Extensive use of geosocial networking (GSN) apps has substantially changed the behaviors and HIV risk among men who have sex with men (MSM). OBJECTIVE We aim to examine the HIV prevalence and risky behaviors among GSN app-using MSM. METHODS We conducted a cross-sectional study among MSM users of Blued (a GSN app) from July 2017 to December 2018. Sociodemographic and behavioural data in the preceding six months were collected through an app-assistant questionnaire, and blood samples were also obtained to test for HIV. HIV prevalence was calculated, and multivariable logistic regression models were constructed to explore the correlates of HIV infection RESULTS A total of 7252 app-using MSM in Beijing were included. The HIV prevalence was 4.7% (95%CI 4.2%-5.2%). In the last six months, nearly half (49.0%) had multiple sexual partners, 3.3% reported having HIV-positive partners, 50.9% were not sure about their current partners’ HIV status. The majority (62.3%) of participants reported consistent condom use, 6.1% had engaged in group sex, and 19.1% had used recreational drug in the past six months. Having college or undergraduate (AOR=0.35, 95%CI 0.16-0.75), or postgraduate (AOR=0.22, 95%CI 0.06-0.78) education, being exclusively insertive in anal intercourse (AOR=0.18, 95%CI 0.07-0.48) were correlated with decreased odds of HIV infection. However, having anal sex (AOR=4.74, 95%CI 1.17-19.19), having 2 to 5 (ORa=1.47 95%CI 1.17-1.86) or six and more (AOR=2.18, 95%CI 1.34-3.55) male sex partners, not consistently using condoms during anal sex (AOR=1.93, 95%CI 1.06-3.52), and being diagnosed with STIs (AOR=3.02, 95%CI 0.95-9.56) in the preceding six months were associated with greater odds of HIV infection. CONCLUSIONS HIV risky behaviors were prevalent among app-using MSM, suggesting more targeted interventions are needed among this population.

scholarly journals Trends and differences in sexual practices and sexually transmitted infections in men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): a repeated cross-sectional study in Melbourne, Australia

BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e037608
Author(s):  
Mario Martín-Sánchez ◽  
Richard Case ◽  
Christopher Fairley ◽  
Jane S Hocking ◽  
Catriona Bradshaw ◽  
...  
Keyword(s):  
Health Centre ◽  
Cross Sectional Study ◽  
Sexual Practices ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Men And Women ◽  
Sexually Transmitted ◽  
Receptive Anal Sex ◽  
Sex With Men

ObjectivesIn the 2010s, there has been an increase in sexually transmitted infections (STI) in men who have sex with men (MSM) in Australia, and since 2015 also in urban heterosexuals. Men who have sex with both men and women (MSMW) have characteristics that may differ from both men who have sex with men only (MSMO) and heterosexual men. We aimed to compare the sexual practices and the trends in HIV/STI positivity between MSMO and MSMW.DesignRepeated cross-sectional study.SettingA sexual health centre in Melbourne, Australia.ParticipantsMSM aged 18 years and above who attended the Melbourne Sexual Health Centre for the first time between 2011 and 2018. This includes 12 795 MSMO and 1979 MSMW.Primary outcome measuresDemographic characterics, sexual practices and HIV/STI positivity.ResultsCompared with MSMW, MSMO were more likely to practice anal sex and to have condomless receptive anal sex with casual male partners, and less likely to have a current regular relationship. Over the 8-year period, there was an increase in condomless receptive anal sex with casual male partners for both groups (MSMO: from 46.2% to 63.3%, ptrend <0.001; MSMW: from 41.3% to 57.9%, ptrend=0.011). Syphilis positivity increased in MSMO (from 5.5% to 7.9%, ptrend=0.012) and MSMW (from 0.9% to 6.4%, ptrend=0.004) and HIV remained stable. Gonorrhoea increased among MSMO from 2011 to 2014 (from 6.7% to 9.6%, ptrend=0.002), and remained stable from 2015 to 2018. MSMO had higher odds of testing positive for gonorrhoea (adjusted OR (aOR) 1.36, 95% CI 1.13 to 1.64), chlamydia (aOR 1.39, 95% CI 1.16 to 1.67), syphilis (aOR 1.74, 95% CI 1.37 to 2.22) and HIV (aOR 4.60, 95% CI 2.43 to 8.70) than MSMW.ConclusionsMSMW have overall lower condomless sex and lower HIV/STI positivity. In the last years, changes in sexual practices in MSM have affected both MSMW and MSMO leading to an increased STI risk.

scholarly journals Adolescent and non-consensual anal sexual debut among Chinese men who have sex with men: a cross-sectional study

2020 ◽  
Author(s):  
Weiming Tang ◽  
Yehua Wang ◽  
Wenting Huang ◽  
Dan Wu ◽  
Fan Yang ◽  
...  
Keyword(s):  
Sexual Risk ◽  
Sexual Debut ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Chinese Men ◽  
Factors Associated ◽  
Consensual Sex ◽  
Sex With Men

Abstract Background: Adolescent sexual debut and non-consensual sex have been linked to higher sexual risk and STI infection in adulthood among men who have sex with men (MSM) in high-income countries. This study aimed to examine adolescent and non-consensual anal sexual debut among Chinese MSM and to evaluate factors associated with adolescent sexual debut and non-consensual anal sex.Methods: A cross-sectional study was conducted recently among Chinese men assigned male sex at birth, ≥18 years old, and who had ever engaged in anal sex with a man. Participants answered questions regarding socio-demographics, condomless sex, age at anal sexual debut with a man, and whether the first anal sex was consensual. Factors associated with an adolescent sexual debut (<18 years old) and non-consensual sex at sexual debut were evaluated. We defined adolescent sexual debut as having anal sex with another man at 17 years old or younger, and the participants were asked whether their first male-to-male anal sex was non-consensual.Results: Overall, 2031 eligible men completed the survey. The mean age of sexual debut was 20.7 (SD=4.3) years old. 17.6% (358/2031) of men reported adolescent sexual debut, and 5.0% (101/2031) reported a non-consensual sexual debut. The adolescent sexual debut was associated with having more male sexual partners (adjusted OR 1.10, 95% CI 1.06–1.15) and condomless anal sex in the last three months (AOR=1.71, 95% CI 1.34-2.18). MSM whose sexual debut was non-consensual were more likely to have condomless anal sex (AOR=1.76, 95% CI 1.17-2.66), and to have reported an adolescent sexual debut (AOR=2.72, 95% CI 1.75-4.21).Conclusions: Many Chinese MSM reported adolescent sexual debut and non-consensual sex, both of which are associated with sexual risk behaviors and drive STI transmission. These findings highlight the need for designing tailored interventions for MSM who experienced adolescent sexual debut and non-consensual sex at debut.

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