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Table 2 Efficacy of the online intervention in reducing condomless anal sex among Chinese MSM, 2011 (n = 1,100)

From: Online HIV prevention intervention on condomless sex among men who have sex with men: a web-based randomized controlled trial

  Standard referral– No (%) Online Intervention – No (%) Difference in proportions (%) 95% CI (%)
Completed-records analysis (n = 986)
 Overall condomless sex in the previous three months 232 (47.8) 193 (38.5) 9.3 (1.1, 17.5)
Multiple imputation ITT analysis (n = 1,100)
 Overall condomless sex in the previous three months 258 (46.9) 209 (38.0) 8.9 (1.2, 16.6)
Subgroup analysis
 Condomless sex with male regular partner/s in the previous three months 183 (53.4) 144 (46.9) 6.5 (−4.4, 17.3)
 Condomless sex with male casual partner/s in the previous three months 98 (38.9) 68 (29.7) 9.2 (−1.3, 19.6)
  1. MSM men who have sex with men, CI confidence interval, ITT intention-to-treat