Table 3

Multivariate analyses of participant characteristics associated with incident syphilis infection among migrant MSM in Beijing

FactorsNo. of syphilis seroconversionsCumulative PYSyphilis incidence (/100 PY)UnivariateMultivariate
HR (95% CI)p ValueAdjusted HR (95% CI)p Value
Total17152.9511.11
Ever had female sex partner(s)
 No996.899.291.00
 Yes854.6414.645.56 (1.10 to 27.05)0.0385.09 (1.02 to 25.57)0.048
 Other00
Number of female sex partners since last investigation
 ≤116149.910.671.00
 ≥213.0532.799.22 (1.13 to 75.37)0.038
Seeking partners in bar/dancing hall/tearoom/saloon
 No11129.418.51.00
 Yes623.5525.483.12 (0.75 to 13.07)0.119
Consistent condom use during oral sex with regular partners in the past 6 months
 No16.2416.031.00
 Yes16146.7110.910.24 (0.03 to 1.99)0.188
Consistent condom use during oral sex with casual partners in the past 6 months
 No04.3701.00
 Yes892.588.64
Consistent condom use during anal sex with regular partners in the past 6 months
 No224.528.161.00
 Yes15128.4311.680.57 (0.11 to 2.80)0.485
Consistent condom use during anal sex with casual partners in the past 6 months
 No019.8001.00
 Yes1183.2113.22
  • MSM, men who have sex with men; PY, person-years.