ArticleThe Journal of infectious diseases2018
Substantial Decline in Prevalence of Vaccine-Type and Nonvaccine-Type Human Papillomavirus (HPV) in Vaccinated and Unvaccinated Girls 5 Years After Implementing HPV Vaccine in Norway.
Article in The Journal of infectious diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.
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Who cites it
26 citing papers in PubMed, 1 synthesis or guideline pooled it.
- 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
- Long-Term Regional Pathology-Detection Trends in High-Grade Cervical Lesions and Cervical Squamous Cell Carcinoma Among Women Aged 40-69 Years in Northern Norway, 1998-2025.Diagnostics (Basel, Switzerland) · 2026Article
- Five-Year Risk of CIN3+ After CIN1 Biopsy in a Norwegian Screening Setting: Comparison of CIN1 Diagnosed in a Single Calendar Year and in Two Consecutive Calendar Years.Pathogens (Basel, Switzerland) · 2026Article
- HPV Type Replacement After HPV Vaccination.Current topics in microbiology and immunology · 2026Review
- Epidemiological, economic and humanistic burden of cervical intraepithelial neoplasia in Europe: A systematic literature review.European journal of obstetrics & gynecology and reproductive biology: X · 2025Review
- Effectiveness of HPV vaccination in reducing infection among young Brazilian women.BMC infectious diseases · 2025Article
- Impact of HPV Catch-Up Vaccination on High-Grade Cervical Lesions (CIN2+) Among Women Aged 26-30 in Northern Norway.Vaccines · 2025Article
- Cervical intraepithelial neoplasia grade 1 and long-term risk of progression and treatment.PloS one · 2025Article
- Monitoring HPV Prevalence and Risk Cofactors for Abnormal Cytology in the Post-Vaccination Period among Croatian Women.Viruses · 2024Article
- Article
- Article
- The Burden of Genital Warts in Finland: Cross-Sectional Analysis of the Prevalence and Direct Medical Costs in 2018.Vaccines · 2023Article
- Ability of epidemiological studies to monitor HPV post-vaccination dynamics: a simulation study.Epidemiology and infection · 2023Article
- Human papillomavirus infection and seroprevalence among female university students in Mexico.Human vaccines & immunotherapeutics · 2022Article
- Concurrent Infection With Multiple Human Papillomavirus Types Among Unvaccinated and Vaccinated 17-Year-Old Norwegian Girls.The Journal of infectious diseases · 2022Article
- Disparities in HPV vaccine knowledge and adolescent HPV vaccine uptake by parental nativity among diverse multiethnic parents in New Jersey.BMC public health · 2022Article
- Review
- Regional differences in cervical cancer incidence and associated risk behaviors among Norwegian women: a population-based study.BMC cancer · 2021Article
- Surveillance systems for monitoring cervical cancer elimination efforts: Focus on HPV infection, cervical dysplasia, cervical screening and treatment.Preventive medicine · 2021Article
- Population Impact of Girls-Only Human Papillomavirus 16/18 Vaccination in The Netherlands: Cross-Protective and Second-Order Herd Effects.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: In 2009, quadrivalent human papillomavirus (HPV) vaccine was introduced in a school-based single-cohort program targeting 12-year-old girls in Norway. We estimated the impact of the Norwegian HPV immunization program. Methods: Three birth cohorts of 17-year-old girls, 2 nonvaccine-eligible cohorts (born 1994 or 1996) and 1 vaccine-eligible cohort (born 1997) were invited to deliver urine samples. The samples were analyzed for 37 HPV genotypes. HPV prevalence was compared between birth cohorts and between vaccinated and unvaccinated girls within and across birth cohorts after linkage to the Norwegian Immunisation Registry. Results: In total, 17749 urine samples were analyzed. A 42% (95% confidence interval [CI], 37%-47%) reduction in any HPV type and 81% (95% CI, 76%-85%) reduction in vaccine types (HPV-6/11/16/18) were observed in the vaccine-eligible cohort compared to the 1994 cohort. Vaccine types were reduced by 54% (95% CI, 39%-66%) and 90% (95% CI, 86%-92%) in unvaccinated and vaccinated girls, respectively, from the 1997 cohort, compared with unvaccinated girls born in 1994. A significant reduction was also observed for several nonvaccine types. Vaccine-type prevalence was reduced by 77% (95% CI, 65%-85%) in vaccinated compared with unvaccinated girls from the 1997 cohort. Conclusions: In this largely HPV-naive population, we observed a substantial reduction in vaccine and nonvaccine types in vaccinated and unvaccinated girls following introduction of HPV vaccination.
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