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Table 1 Incidence density of syphilis infection among MSM and FSWs - results from cohort studies a

From: The epidemic of sexually transmitted infections in China: implications for control and future perspectives

Study Study year Study location Sample size Incidence density per 100 person- years (95% CI)b Risk factors
Men who have sex with men   
Li SM, et al. [12] 2008 Beijing 525 9.3 (5.9 to 12.8) Sourcing male sex partners in parks, public washrooms or bathhouses Performing rectal douching after homosexual anal intercourse
Hao C, et al. [14] 2011c Nanjing 348 7.6 (2.6 to 12.5) Sourcing male sex partners mostly from gay saunas High monthly income; Self-identification of homosexual orientation
Li D et al. [15] 2006 to 2007 Beijing 507 16.9 (12.4 to 21.3) Sourcing male sex partners in bathhouses/public washrooms/parks Having less education Drinking alcohol four or more times monthly
Xu JJ et al. [16] 2006 Shenyang 218 38.5 (27.7 to 50.2) Being married Having more than five male sexual partners within the past 12 months
Zhang M et al. [13] 2007 Shenyang 229 21.6 (14.4 to 30.4) No data available
  2008   598 26.0 (21.9 to 30.9)  
  2009   455 29.8 (21.8 to 38.7)  
Female sex workers   
Wang HB et al. [17] 2006 to 2007 Kiayuan 492 1.1 Being elder Having less education Having more clients Inconsistent use of a condom
Tian LG et al. [18]6 2004 to 2005 Xichang 343 6.2 No data available.
  1. a FSWs, female sex workers; MSM, men who have sex with men
  2. b CI, confidence interval.
  3. c This is year the study was reported as the study year was not reported in the paper.