This study aimed to estimate the prevalence of chlamydial trachomatis (CT) infection and explore its risk factors among patients attending sexual and reproductive health clinics in Shenzhen, China. We collected demographic and clinical information from attendees (aged 18–49). CT and Neisseria gonorrhoeae (NG) infection was determined by nucleic acid amplification test (NAAT) on self-collected urine specimens. Of 1,938 participants recruited, 10.3% (95% confidence interval [CI]: 9.6%-11.0%) tested positive for CT. Prevalence was similar between men (10.6% [85/804]; 95% CI, 9.5%–11.7%) and women (10.1% [115/1134]; 95% CI: 9.2%–11.0%). Being 18–25 years old (adjusted odds ratio [aOR] = 2.52; 95%CI:1.35–4.71), never tested for CT before (aOR = 2.42; 95%CI: 1.05–5.61) and infected with NG(aOR = 3.87; 95%CI: 2.10–7.10) were independently associated with CT infection. We found that CT infection is prevalent among patients attending sexual and reproductive health clinics in Shenzhen, China. A comprehensive program including CT screening, surveillance and treatment is urgently needed.
Background: Untreated male partners are a critical source of maternal re-infection. Contact tracing is a good way to identify infection among partners and reduce risk of mother-to-child transmission related to maternal re-infection. This study aimed to analyze the current situation and related factors of contact tracing of syphilis-seropositive pregnant women and syphilis-infection among their male partners.Method: Data of syphilis-seropositive pregnant women and their male partners attending clinic for syphilis-screening were obtained from the Shenzhen Program for Prevention of Congenital Syphilis. Contact tracing rate of syphilis-seropositive pregnant women and syphilis prevalence among male partners were counted, and related factors were also analyzed using a random-effects logistic regression model.Result: Of the 1299 syphilis-seropositive pregnant women, 74.1% (963/1299) had their male partners receiving syphilis-screening and 19.1% (184/963) of male partners were syphilis-infected. For pregnant women, being divorced (adjusted odds ratio [AOR] =0.39; 95%CI: 0.17-0.87), seeking for emergency services at their first antenatal clinics visits (AOR=0.58; 95%CI: 0.44-0.77), reporting willingness to notify partner(AOR=7.65; 95%CI: 4.69-12.49), multi-partners (AOR= 1.38; 95%CI:1.03-1.86) and having a history of drug abuse (AOR=0.37; 95%CI: 0.14-1.00)were independently associated with successful contact tracing. For male partners, of minority ethnicity (AOR=4.15; 95%CI: 1.66-10.34), age of first sex>20(AOR=0.57; 95%CI: 0.37-0.87), reporting multi-partners (AOR = 1.60; 95%CI: 1.04-2.46), having a history of drug abuse (AOR=4.07; 95%CI: 1.31-12.64) were independently associated with syphilis-infection. In addition, pregnant women with TRUST titer ≥1:8 (AOR=2.81; 95%CI: 1.87-4.21), having a history of adverse pregnancy outcomes (AOR=1.70; 95%CI: 1.14-2.53), reporting multi-partners (AOR=0.43; 95%CI: 0.29-0.64) and reporting the current partner as the source of syphilis (AOR=5.05; 95%CI: 2.82-9.03) were independently associated with partners' syphilis-infection.Conclusion: Contact tracing is feasible and effective in identifying syphilis-infected partners among syphilis-seropositive pregnant women. Contact tracing is associated with many factors such as women's marital status, services at their first antenatal clinics visit and willingness of partner notification. Partners' ethnicity, age of first sex, multi-partners and history of drug abuse as well as women's levels of TRUST titer were associated with partners' syphilis-infection.
Background Untreated male partners are a critical source of maternal re-infection. Contact tracing is a good way to identify infection among partners and reduce risk of mother-to-child transmission related to maternal re-infection. This study aimed to analyze the current situation and related factors of contact tracing of syphilis-seropositive pregnant women and syphilis-infection among their male partners. Method Data of syphilis-seropositive pregnant women and their male partners attending clinic for syphilis-screening were obtained from the Shenzhen Program for Prevention of Congenital Syphilis. Contact tracing rate of syphilis-seropositive pregnant women and syphilis prevalence among male partners were counted, and related factors were also analyzed using a random-effects logistic regression model. Result Of the 1299 syphilis-seropositive pregnant women, 74.1% (963/1299) had their male partners receiving syphilis-screening and 19.1% (184/963) of male partners were syphilis-infected. For pregnant women, being divorced (adjusted odds ratio [AOR] =0.39; 95%CI: 0.17–0.87), seeking for emergency services at their first antenatal clinics visits (AOR = 0.58; 95%CI: 0.44–0.77), reporting willingness to notify partner(AOR = 7.65; 95%CI: 4.69–12.49), multi-partners (AOR = 1.38; 95%CI:1.03–1.86) and having a history of drug abuse (AOR = 0.37; 95%CI: 0.14–1.00)were independently associated with successful contact tracing. For male partners, of minority ethnicity (AOR = 4.15; 95%CI: 1.66–10.34), age at first sex>20(AOR = 0.57; 95%CI: 0.37–0.87), reporting multi-partners (AOR = 1.60; 95%CI: 1.04–2.46), having a history of drug abuse (AOR = 4.07; 95%CI: 1.31–12.64) were independently associated with syphilis-infection. In addition, pregnant women with TRUST titer ≥1:8 (AOR = 2.81; 95%CI: 1.87–4.21), having a history of adverse pregnancy outcomes (AOR = 1.70; 95%CI: 1.14–2.53), reporting multi-partners (AOR = 0.43; 95%CI: 0.29–0.64) and reporting the current partner as the source of syphilis (AOR = 5.05; 95%CI: 2.82–9.03) were independently associated with partners’ syphilis-infection. Conclusion Contact tracing is feasible and effective in identifying syphilis-infected partners among syphilis-seropositive pregnant women. Contact tracing is associated with many factors such as women’s marital status, services at their first antenatal clinics visit and willingness of partner notification. Partners’ ethnicity, age at first sex, multi-partners and history of drug abuse as well as women’s levels of TRUST titer were associated with partners’ syphilis-infection.
Purpose Identifying youth at risk of future e-cigarette use is crucial for informing effective prevention strategies. The current study aims to examine the correlates of e-cigarette use susceptibility among never-smoking youth from four levels: personal, psychological, parental, and social factors. Methods This Cross-sectional study recruited 2487 never-smoking students (aged 12–17 years) from 15 junior and high schools in the Bao'an District of Shenzhen, China from October to December 2021. E-cigarette susceptibility was measured by two items assessing the possibility to use e-cigarettes in the future and willingness to use if offered by a friend. Random-effects logistic regression models were used to explore risk factors of e-cigarette use susceptibility from four levels. Results Of the 2487 youth who never smoked, 5.5% (n = 136) were susceptible to e-cigarette use. The regression model identified the following correlates of e-cigarette susceptibility: perceptions of e-cigarettes, perceived social support, parental style, pro- and anti-tobacco information exposure, SHS exposure, and friends using e-cigarettes. Youth believing it is not easy to get addicted to e-cigarettes (aOR = 2.19; 95%CI: 1.21–3.96; p = 0.010), having father rejection (aOR = 2.38; 95%CI: 1.22–4.65; p = 0.011), having SHS exposure at home for 5–7 days (aOR = 2.04; 95%CI: 1.24–3.37; p = 0.005), noticing e-cigarette advertising (aOR = 1.80; 95%CI: 1.22–2.65; p = 0.003), and having friends using e-cigarettes (aOR = 2.59–5.28; 95%CI: 1.76–14.73; p < 0.001) were more susceptible to e-cigarette use. Youth thinking e-cigarette use less attractive (aOR = 0.55; 95%CI: 0.37–0.83; p = 0.005), having high social support (aOR = 0.49; 95%CI: 0.24–0.97; p = 0.041), and noticing the effects of e-cigarette use (aOR = 0.53; 95%CI: 0.36–0.78; p = 0.001) were less susceptible to e-cigarette use. Conclusions Youth' susceptibility to e-cigarette use is affected by multiple factors. A multi-level approach involving personal, psychological, parental, and social environment factors is needed to prevent youth from e-cigarette initiation.
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