Table 3

Cumulative HPV incidence over 1 year, persistence and clearance among 97 women with results available at enrolment and 12 months, by HPV genotype

Control (N=24 women)Vaccine (N=73 women)Total (N=97 women)
Infected at visit 1Persistent*Cleared*New†Infected at visit 1Persistent*Cleared*New†Infected at visit 1Persistent*Cleared*New†
High risk
 HPV-1633 (100%)1 (4.8%)114 (36.4%)7 (63.6%)0 (–)144 (28.6%)10 (71.4%)1 (1.2%)
 HPV-1811 (100%)1 (4.4%)01 (1.4%)11 (100%)2 (2.1%)
 HPV-3100 (–)31 (33.3%)2 (66.7%)3 (4.3%)31 (33.3%)2 (66.7%)3 (3.2%)
 HPV-3311 (100%)0 (–)21 (50.0%)1 (50.0%)2 (2.8%)31 (33.3%)2 (66.7%)2 (2.1%)
 HPV-3511 (100%)0 (–)42 (50.0%)2 (50.0%)6 (8.7%)53 (60.0%)2 (40.0%)6 (6.5%)
 HPV-3911 (100%)1 (4.4%)71 (14.3%)6 (85.7%)8 (12.1%)81 (12.5%)7 (87.5%)9 (10.1%)
 HPV-4544 (100%)0 (–)131 (7.7%)12 (92.3%)3 (5.0%)171 (5.9%)16 (94.1%)3 (3.8%)
 HPV-5121 (50.0%)1 (50.0%)2 (9.1%)31 (33.3%)2 (66.7%)9 (12.9%)52 (40.0%)3 (60.0%)11 (12.0%)
 HPV-5211 (100%)1 (4.4%)72 (28.6%)5 (71.4%)4 (6.1%)83 (37.5%)5 (62.5%)5 (5.6%)
 HPV-5622 (100%)1 (4.6%)03 (4.1%)22 (100%)4 (4.2%)
 HPV-5831 (33.3%)2 (66.7%)1 (4.8%)93 (33.3%)6 (66.7%)0 (–)124 (33.3%)8 (66.7%)1 (1.2%)
 HPV-5921 (50.0%)1 (50.0%)0 (–)22 (100%)3 (4.2%)41 (25.0%)3 (75.0%)3 (3.2%)
 HPV-6822 (100%)1 (4.6%)21 (50.0%)1 (50.0%)6 (8.5%)43 (75.0%)1 (25.0%)7 (7.5%)
All high risk infections‡237 (30.4%)16 (69.6%)96317 (27.0%)46 (73.0%)488624 (27.9%)62 (72.1%)57
Low risk
 HPV-622 (100%)3 (13.6%)41 (25.0%)3 (75.0%)3 (4.4%)61 (16.7%)5 (83.3%)6 (6.6%)
 HPV-1100 (–)11 (100%)4 (5.6%)11 (100%)4 (4.2%)
 HPV-2611 (100%)1 (4.4%)33 (100%)2 (2.9%)44 (100%)3 (3.2%)
 HPV-4022 (100%)1 (4.6%)33 (100%)2 (2.9%)55 (100%)3 (3.3%)
 HPV-4211 (100%)0 (–)41 (25.0%)3 (75.0%)3 (4.4%)51 (20.0%)4 (80.0%)3 (3.3%)
 HPV-5311 (100%)5 (21.7%)102 (20.0%)8 (80.0%)4 (6.4%)113 (27.3%)8 (72.7%)9 (10.5%)
 HPV-5453 (60.0%)2 (40.0%)2 (10.5%)31 (33.3%)2 (66.7%)4 (5.7%)84 (50.0%)4 (50.0%)6 (6.7%)
 HPV-5521 (50.0%)1 (50.0%)1 (4.6%)61 (16.7%)5 (83.3%)2 (3.0%)82 (25.0%)6 (75.0%)3 (3.4%)
 HPV-6121 (50.0%)1 (50.0%)2 (9.1%)52 (40.0%)3 (60.0%)5 (7.4%)73 (42.9%)4 (57.1%)7 (7.8%)
 HPV-6201 (4.2%)42 (50.0%)2 (50.0%)3 (4.4%)42 (50.0%)2 (50.0%)4 (4.3%)
 HPV-6400 (–)11 (100%)2 (2.8%)11 (100%)2 (2.1%)
 HPV-6632 (66.7%)1 (33.3%)1 (4.5%)44 (100%)6 (8.7%)72 (28.6%)5 (71.4%)7 (7.8%)
 HPV-6722 (100%)1 (4.6%)22 (100%)6 (8.5%)44 (100%)7 (7.5%)
 HPV-7011 (100%)1 (4.4%)01 (1.4%)11 (100%)2 (2.1%)
 HPV-7311 (100%)1 (4.4%)11 (100%)1 (1.4%)22 (100%)2 (2.1%)
 HPV-8131 (33.3%)2 (66.7%)1 (4.8%)11 (100%)3 (4.2%)41 (25.0%)3 (75.0%)4 (4.3%)
 HPV-8211 (100%)0 (–)31 (33.3%)2 (66.7%)2 (2.9%)41 (25.0%)3 (75.0%)2 (2.2%)
 HPV-8311 (100%)2 (8.7%)21 (50.0%)1 (50.0%)4 (5.6%)32 (66.7%)1 (33.3%)6 (6.4%)
 HPV-8441 (25.0%)3 (75.0%)0 (–)33 (100%)5 (7.1%)71 (14.3%)6 (85.7%)5 (5.6%)
 CP610811 (100%)1 (4.4%)83 (37.5%)5 (62.5%)3 (4.6%)94 (44.4%)5 (55.6%)4 (4.6%)
All low risk infections‡3312 (36.4%)21 (63.6%)246815 (22.1%)53 (77.9%)6510127 (26.7%)74 (73.3%)89
  • *Among those infected with that serotype at visit 1 (enrolment).

  • †Cumulative incidence among those uninfected with that serotype at enrolment.

  • ‡Total number of genotype-specific infections among 97 women (24 in control and 73 in vaccine arm).

  • HPV, human papillomavirus.