ArticlePapillomavirus research (Amsterdam, Netherlands)2018
Differential misclassification between self-reported status and official HPV vaccination records in Japan: Implications for evaluating vaccine safety and effectiveness.
Article in Papillomavirus research (Amsterdam, Netherlands), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Article
- Comparative evaluation of machine learning models for predicting COVID-19 vaccine uptake in U.S. adults.BMC public health · 2026Article
- Article
- U.S. Vietnamese Parents' Perceptions of Different Approaches for Confirming Adolescent HPV Vaccination Records in Research Studies.Health expectations : an international journal of public participation in health care and health policy · 2025Article
- Human papillomavirus vaccine to prevent CIN3 or worse (CIN3+): A nationwide case-control study in Japan.Cancer science · 2025Article
- A transversal cross-sectional study of factors related to HPV vaccination status and cancer screening participation among French women aged 25-40.BMC cancer · 2024Article
- Attitudes towards Vaccinations in a National Italian Cohort of Patients with Inflammatory Bowel Disease.Vaccines · 2023Article
- Disparities among Japanese municipalities in recommendations for routine and catch-up HPV vaccinations.Cancer science · 2023Article
- Article
- Uptake of HPV Vaccine among young adults with disabilities, 2011 to 2018.Disability and health journal · 2022Article
- The impact of HPV vaccine narratives on social media: Testing narrative engagement theory with a diverse sample of young adults.Preventive medicine reports · 2022Article
- Effectiveness of human papillomavirus vaccine against cervical precancer in Japan: Multivariate analyses adjusted for sexual activity.Cancer science · 2022Article
- Vaccination Status and Attitudes towards Vaccines in a Cohort of Patients with Celiac Disease.Vaccines · 2022Article
- Human papillomavirus vaccine effectiveness by age at first vaccination among Japanese women.Cancer science · 2022Article
- Article
- Accuracy of Self-reported Human Papillomavirus Vaccination Status Among Gay and Bisexual Adolescent Males: Cross-sectional Study.JMIR public health and surveillance · 2021Article
- Estimate of global human papillomavirus vaccination coverage: analysis of country-level indicators.BMJ open · 2021Article
- Effectiveness of human papillomavirus vaccination in young Japanese women: a retrospective multi-municipality study.Human vaccines & immunotherapeutics · 2021Article
- Disparity of Cervical Cancer Risk in Young Japanese Women: Bipolarized Status of HPV Vaccination and Cancer Screening.Vaccines · 2021Article
- Risk factors for HPV infection and high-grade cervical disease in sexually active Japanese women.Scientific reports · 2021Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Japan has no national vaccine registry and approximately 1700 municipalities manage the immunization records independently. In June 2013, proactive recommendations for the human papillomavirus (HPV) vaccine were suspended after unconfirmed reports of adverse events following immunization in the media, despite no vaccine safety signal having been raised. Furthermore, studies assessing HPV vaccine safety and effectiveness published post suspension are predominantly based on self-reported information. Our aim was to examine the accuracy of self-reported vaccination status compared with official municipal records. Participants were women aged 20-22 yrs, who were attending for cervical screening in Niigata city. Among the 1230 eligible registrants, vaccine uptake, defined as any dose, was 75.0% and 77.2% according to a self-reported questionnaire and municipal records, respectively. The accuracy rate of self-reported information was as follows: positive predictive value (PPV) was 87.7%; negative predictive value (NPV) was 54.5%; sensitivity was 85.2%; and specificity was 59.8%. The validity of self-reported information was only moderate (Kappa statistic = 0.44, 95% confidence interval 0.37-0.50). This combined with the low NPV may lead to reduced estimation of effectiveness and safety. A more reliable method, such as a national HPV vaccine registry, needs to be established for assessing HPV immunization status in Japan.
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