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Objectives To analyze and understand the risk factors related to HIV new infections among men who have sex with men (MSM).Methods A longitudinal observational study among MSM was conducted to collect information on HIV related behaviors and sero-conversion.Univariate and multivariate generalized estimating equations (GEE) were used to discuss the risk factors for HIV new infection.Results A total number of 4 305 MSM were followed during 2013-2015.Among those self-reported MSM who are seeking partners on the Interner tended to have higher proportion on receptive anal intercourse and consistent condom use during anal intercourse than the subgroups seeking their partners in gay bars or bathrooms.HIV incidence among followed MSM during the study period appeared as 4.3/100 person years,with adjusted RR (aRR) of HIV infection for receptive anal intercourse as group 2.20 (95％ CI:1.49-3.24) times than that of insertion anal intercourse group.Those who used rush-poppers (aRR=1.55,95％CI:1.10-2.17),unprotected anal intercourse (aRR=2.24,95％ CI:1.62-3.08),and those with syphilis infection (aRR=2.95,95％ CI:2.00-4.35) were also risk factors for HIV new infections.After controlling other factors,the relationship between the ways of seeking partners and HIV new infection was not statistical significant.Conclusion Risk factors for HIV new infection among MSM appeared complex and interactive,suggesting that further studies are needed to generate tailored strategies for the prevention of HIV epidemic among MSM population.
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Objectives To analyze and understand the risk factors related to HIV new infections among men who have sex with men (MSM).Methods A longitudinal observational study among MSM was conducted to collect information on HIV related behaviors and sero-conversion.Univariate and multivariate generalized estimating equations (GEE) were used to discuss the risk factors for HIV new infection.Results A total number of 4 305 MSM were followed during 2013-2015.Among those self-reported MSM who are seeking partners on the Interner tended to have higher proportion on receptive anal intercourse and consistent condom use during anal intercourse than the subgroups seeking their partners in gay bars or bathrooms.HIV incidence among followed MSM during the study period appeared as 4.3/100 person years,with adjusted RR (aRR) of HIV infection for receptive anal intercourse as group 2.20 (95％ CI:1.49-3.24) times than that of insertion anal intercourse group.Those who used rush-poppers (aRR=1.55,95％CI:1.10-2.17),unprotected anal intercourse (aRR=2.24,95％ CI:1.62-3.08),and those with syphilis infection (aRR=2.95,95％ CI:2.00-4.35) were also risk factors for HIV new infections.After controlling other factors,the relationship between the ways of seeking partners and HIV new infection was not statistical significant.Conclusion Risk factors for HIV new infection among MSM appeared complex and interactive,suggesting that further studies are needed to generate tailored strategies for the prevention of HIV epidemic among MSM population.
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Objective To compare the prevalence of HIV/STD and related health care seeking behaviors among male STD clinic attendees between Xi'an and Xianyang cities.Methods During June and July 2016,206 male STD clinic attendees were studied in Xi'an city,with another 221 male STD clinic attendees in Xianyang city.Cross-sectional questionnaire survey was used to collect attendees' behavioral information.Blood samples were collected via HIV/HCV/Syphilis testing.Results The prevalence rate of HIV infection was 2.4％ (5/206) in Xi'an and 0.9％ (2/221) in Xianyang,with no statistical significant difference between the two cities.The prevalence rate of syphilis was 4.9％ (10/206) in Xi'an,which was significantly lower than 13.6％ (30/221) in Xianyang.The proportion of respondents,diagnosed with other sexually transmitted diseases,in Xi'an was higher than that of Xianyang.The proportions of commercial heterosexual sex and sex with temporary sexual partners in the past 3 months were 18.0％ (37/206) and 15.5％ (32/206) in Xi'an,lower than 46.6％ (103/221) and 15.8％ (35/221) in Xianyang (x2 =39.70,P ＜0.01;x2 =-0.01,P=0.93).The proportions of condom use with commercial sex workers or temporary sexual partners in the past 3 months among Xi'an were 37.8％ (14/37) and 6.3％ (2/32),lower than 93.1％ (95/102)and 57.1％ (20/35) in Xianyang (x2=49.06,P＜0.01;x2=19.63,P＜0.01).Conclusion Differences were noticed between Xi'an and Xianyang city in terms of STD and HIV prevalences,behaviors related to commercial sex and use of condoms among the male STD clinic attendees that calling for targeted actions in control of high risk behaviors in both HIV/AIDS and STDs transmission.
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Objective To compare the prevalence of HIV/STD and related health care seeking behaviors among male STD clinic attendees between Xi'an and Xianyang cities.Methods During June and July 2016,206 male STD clinic attendees were studied in Xi'an city,with another 221 male STD clinic attendees in Xianyang city.Cross-sectional questionnaire survey was used to collect attendees' behavioral information.Blood samples were collected via HIV/HCV/Syphilis testing.Results The prevalence rate of HIV infection was 2.4％ (5/206) in Xi'an and 0.9％ (2/221) in Xianyang,with no statistical significant difference between the two cities.The prevalence rate of syphilis was 4.9％ (10/206) in Xi'an,which was significantly lower than 13.6％ (30/221) in Xianyang.The proportion of respondents,diagnosed with other sexually transmitted diseases,in Xi'an was higher than that of Xianyang.The proportions of commercial heterosexual sex and sex with temporary sexual partners in the past 3 months were 18.0％ (37/206) and 15.5％ (32/206) in Xi'an,lower than 46.6％ (103/221) and 15.8％ (35/221) in Xianyang (x2 =39.70,P ＜0.01;x2 =-0.01,P=0.93).The proportions of condom use with commercial sex workers or temporary sexual partners in the past 3 months among Xi'an were 37.8％ (14/37) and 6.3％ (2/32),lower than 93.1％ (95/102)and 57.1％ (20/35) in Xianyang (x2=49.06,P＜0.01;x2=19.63,P＜0.01).Conclusion Differences were noticed between Xi'an and Xianyang city in terms of STD and HIV prevalences,behaviors related to commercial sex and use of condoms among the male STD clinic attendees that calling for targeted actions in control of high risk behaviors in both HIV/AIDS and STDs transmission.
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Objective To learn 2009~2014 Shaanxi Province sentinel surveillance six classes of HIV infection focus groups, and estimates of HIV-1 new infection.Methods Used enzyme-linked immunosorbent assay (ELISA)and Western blot (WB)experiments for the 2009~2014 HIV sentinel surveillance Shaanxi Province Category 6 focus groups conducted a total of 77 778 HIV antibody screening and confirmatory testing estimates of HIV-1 new infection.Results 2009~2014 men who had sex with men and people with HIV infection rate were 3.75%,8.77%,3.50%,5.00%,6.20% and 5.75%,and a slow upward trend;HIV-1 new infection were 5.04%,8.96%,5.01%,5.95%,4.68% and 6.39%,the overall downward trend. Young students,drug addicts,sex workers,pregnant women,and male STD clinic attenders five people with HIV infection and HIV-1 new infection were emerging to remain low.But male STD clinic attenders of HIV infection and HIV-1 new in-fection was emerging slowly rising trend.Conclusion Shaanxi MSM HIV infection and HIV-1 new infection were high,but HIV-1 new infection had decreased slowly.Emerging trend should continue to increase the population of the intervention ef-forts.The infection rate in other monitoring population was relatively low but a few people on the rise,the need to take the necessary coping methods.
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Objective To explore the prescribing patterns of outpatients receiving antibiotics for upper respiratory tract infections (URTIs) in rural Western China and to identify the correlation in terms of doctors and patients characteristics. Methods Totally 7678 prescriptions for URTIs were collected from 680 primary health village clinics of 40 counties across 10 provinces of Western China. Two outcome variables were used in the analysis: the occurrence of prescribing at least one antibiotic drug for an URTI and the occurrence of prescribing two or more antibiotics for an URTI. GEE logistic regression models were used to examine the socioeconomic and demographic determinants of the above two outcome variables. Results The percentage of prescribing at least one antibiotic for URTIs was 48.6% while the percentage of prescribing antibiotic combination (two or more antibiotics) was 4.6%. The two measurements of antibiotic utilization differed remarkably among the 10 provinces. Patients diagnosed with tonsillitis and faucitis had higher odds (OR=8.86 for tonsillitis and OR=4.64 for faucitis) of antibiotic prescription than patients with other diagnosis of URTIs. Patients with tonsillitis and faucitis also had higher odds (OR=3.82 for tonsillitis and OR=2.71 for faucitis) of multiple antibiotic prescription than those with other diagnosis of URTIs. The number of drugs per prescription and injection in prescriptions were also significant predictors of antibiotic and multiple antibiotic utilization for URTIs. Conclusion It is concluded that the percentage of antibiotic prescription for URTIs is higher in rural Western China than in most of other countries with available data and that prescriptions of antibiotics for URTIs are associated with residence regions of patients, URTI diagnosis and background information on drug prescription.