Evidence map›Paper›PMID 31504649›Full record

ArticleThe Journal of infectious diseases2020

Cervical Intraepithelial Neoplasia Rates in British Columbia Women: A Population-Level Data Linkage Evaluation of the School-Based HPV Immunization Program.

C Sarai Racey, Arianne Albert, Robine Donken, Laurie Smith, John J Spinelli, Heather Pedersen, Pamela de Bruin, Cindy Masaro, Sheona Mitchell-Foster, Manish Sadarangani and 5 more

Abstract readComparative Study
In one paragraph

Article in The Journal of infectious diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Observational
  7. Article
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  11. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

C Sarai RaceyUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Arianne AlbertWomen's Health Research Institute, BC Women's Hospital and Health Service, Vancouver, British Columbia, Canada.
Robine DonkenUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Laurie SmithWomen's Health Research Institute, BC Women's Hospital and Health Service, Vancouver, British Columbia, Canada.
John J SpinelliUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Heather PedersenUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Pamela de BruinCommunicable Disease Prevention and Immunization Program, Interior Health Authority, Sicamous, British Columbia, Canada.
Cindy MasaroVancouver Costal Health Authority, Vancouver, British Columbia, Canada.
Sheona Mitchell-FosterUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Manish SadaranganiUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Meena DawarUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Mel KrajdenUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Monika NausUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Dirk van NiekerkUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.
Gina OgilvieUniversity of British Columbia, Faculty of Medicine, Vancouver, British Columbia, Canada.

Funding

CIHR FDN-143339
6 · The paper itself

Abstract

backgroundTo understand real-world human papillomavirus (HPV) vaccine impact, continuous evaluation using population-based data is critical. We evaluated the early impact of the school-based HPV immunization program on cervical dysplasia in women in British Columbia, Canada.

methodsData linkage was performed using records from provincial cervical screening and immunization registries. Precancerous outcomes were compared between unvaccinated and HPV-vaccinated women born 1994-2005. Incidence rate, relative rate (RR), and vaccine effectiveness (VE), using unadjusted and adjusted Poisson regression of cytology (HSIL) and histopathology (CIN2, CIN3, and CIN2+) outcomes, were compared across vaccination status groups.

resultsWomen who received a complete series of vaccine on schedule between age 9 and 14 years had an adjusted RR = 0.42 (95% confidence interval [CI], 0.31-0.57) for CIN2+ over 7 years of follow-up compared to unvaccinated women, resulting in a VE of 57.9% (95% CI, 43.2%-69.0%). Adjusted RR for HSIL was 0.53 (95% CI, .43-.64), resulting in a VE of 47.1% (95% CI, 35.6%-56.7%).

conclusionWomen vaccinated against HPV have a lower incidence of cervical dysplasia compared to unvaccinated women. Immunization between 9 and 14 years of age should be encouraged. Continued program evaluation is important for measuring long-term population impact.

Indexed as

Immunization ProgramsPapillomavirus VaccinesAdolescentAge FactorsBritish ColumbiaChildEarly Detection of CancerFemaleHumansIncidenceInformation Storage and RetrievalPapillomavirus InfectionsProgram EvaluationRegistriesSchoolsUterine Cervical DysplasiaPapillomavirus Vaccinescervical intraepithelial neoplasiahuman papillomavirusimmunization programspapillomavirus vaccinesvaccine effectiveness

Identifiers

PMID31504649
PMCPMC6910877

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.