Table 2.

Incidence rates by HPV type

HPV typenMean exposure time, yCases/person-yearsIncidence per 100 person-years(95% CI)
HPV-161,5583.0273/4,6065.95.2-6.6
HPV-181,6423.1113/5,1622.21.8-2.6
HPV-311,6033.1157/4,9783.22.7-3.6
HPV-331,6773.257/5,3861.10.8-1.3
HPV-351,6713.252/5,3921.00.7-1.2
HPV-451,6493.277/5,2671.51.1-1.8
HPV-521,6143.1173/4,9873.53.0-4.0
HPV-581,6413.2109/5,2152.11.7-2.5
HPV-591,6173.1172/5,0063.42.9-3.9