ArticleCancer science2022
Effectiveness of human papillomavirus vaccine against cervical precancer in Japan: Multivariate analyses adjusted for sexual activity.
Article in Cancer science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.
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Who cites it
7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 8 citations in OpenAlex.
- Effects of human papillomavirus (HPV) vaccination programmes on community rates of HPV-related disease and harms from vaccination.The Cochrane database of systematic reviews · 2025Pooled it
- Prevalence of non-vaccine high-risk HPV cervical infections in vaccinated women: a systematic review and meta-analysis.BMC infectious diseases · 2025Pooled it
- Estimation of self-funded human papillomavirus vaccine recipients from Japan's previously assumed "unvaccinated generation".Cancer science · 2024Article
- Human Papillomavirus Vaccination by Birth Fiscal Year in Japan.JAMA network open · 2024Article
- Human papillomavirus vaccine impact on invasive cervical cancer in Japan: Preliminary results from cancer statistics and the MINT study.Cancer science · 2023Article
- Article
- Effectiveness of human papillomavirus vaccine against cervical precancer in Japan: Multivariate analyses adjusted for sexual activity.Cancer science · 2022Article
Corrections and comments
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Authors and funding
12 authors at 6 institutions in 2 countries.
Funding
Abstract
Japanese girls aged 12-16 years are offered free human papillomavirus (HPV) vaccination and cervical cancer screening is conducted with cytology and not HPV testing from the age of 20 years. So far, no study has analyzed the effect of HPV vaccination against cervical precancers considering HPV infection status and sexual activity. We aimed to analyze the vaccine effectiveness (VE) against HPV infection and cytological abnormalities, adjusted for sexual activity. This study comprised women aged 20-26 years who underwent cervical screening in Niigata. We obtained HPV vaccination status from municipal records and a questionnaire along with information concerning sexual activity. Of 5194 women registered for this study, final analyses included 3167 women in the vaccinated group (2821 vaccinated women prior to sexual debut) and 1386 women in the unvaccinated group. HPV 16/18 (0.2% vs 3.5%), 31/45/52 (3.4% vs 6.6%), and 31/33/45/52/58 (5.0% vs 9.3%) positive rates were significantly lower in the vaccinated group (P < 0.001). No women vaccinated before sexual debut had HPV 16/18-related cytological abnormalities. VE for HPV 16/18 infection and high-grade cytological abnormalities in women vaccinated prior to sexual debut were 95.8% (95% CI 81.9-99.0%; P < 0.001) and 78.3% (95% CI 11.3-94.7%; P = 0.033), respectively, in multivariate analyses adjusted for age and number of sexual partners. However, analyses of all vaccinated women did not show significant effectiveness against cytological abnormalities. Our results showed the effectiveness of HPV vaccine against high-grade cervical cytological abnormalities and the importance of the vaccination before sexual debut.
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