Table 3.
Vaccine Type | Efficacy and Effectiveness | HPV Status at Enrolment | Vaccine Efficacy (95% CI) |
---|---|---|---|
Bivalent | Persistent infection from HPV 16/18 (6 months) [15,56] | Naive | 83% (71% to 90%) |
Irrespective | 43% (31% to 53%) | ||
CIN2+ associated with HPV 16/18 [15] | Naive | 70% (19% to 89%) |
|
Irrespective | 26% (−5% to 48%) |
||
Quadrivalent | Persistent infection from HPV 6/11/16/18 (6 months) [15] | Irrespective | 48% (35% to 58%) |
CIN2+ associated with HPV 6/11/16/18 [15] | Naive | 63% (−41% to 90%) |
|
Irrespective | 22% (−37% to 56%) |
||
All CIN and external genital lesions related to HPV 6/11/16/18 [57] | Naive | 88.7% (71.8% to 94.8%) |
|
Irrespective | 30.9% (11.1% to 46.5%) |
||
Incidence of infection of at least 6 months’ duration and cervical and external genital disease related to HPV 6/11/16/18 [57] | Naive | 74·6% (58.1% to 85%) | |
Irrespective | 30.9% (11.1% to 46.5%) |