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Table 1 Enrollment prevalence of HR-HPV infections and observed clearance proportions in the intervention arm (I) and the control arm (C).

From: Parametric frailty models for clustered data with arbitrary censoring: application to effect of male circumcision on HPV clearance

  Intervention
n = 330 (%)
Control
n = 314 (%)
Prevalence
Rate Ratio (I/C)
95% Confidence
Interval
No. of men infected with Any HR-HPV 121 (36.7) 115 (36.6) 1.00 (0.82-1.23)
Single HR-HPV 77 (23.3) 80 (25.5) 0.92 (0.70-1.20)
Multiple HR-HPVs 44 (13.3) 35 (11.1) 1.20 (0.79-1.81)
Total No. of infections No. of infections cleared 180 169   
by 6-month 112 (62.2) 98 (58.0)   
by 12-month 141 (78.3) 123 (72.8)   
by 24-month 171 (95.0) 161 (95.3)