Effectiveness of HPV vaccination against anogenital warts by number of doses and duration of buffer period for studies using the quadrivalent vaccine
1 dose vs 0 doses; 2 doses vs 0 doses; 3 doses vs 0 doses
Data included in this analysis were extracted from original published articles.
Gray area indicates the range of the CIs from the published studies for effectiveness of 3 doses using the longest buffer period.
Perkins reports using a buffer period but does not report results in the article.
a Risk ratio includes different measures depending on study, including incidence rate ratio, prevalence ratio, risk ratio, odds ratio or hazard ratio.