Evidence map›Paper›PMID 29807937›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2018

Quadrivalent human papillomavirus vaccination in girls and the risk of autoimmune disorders: the Ontario Grade 8 HPV Vaccine Cohort Study.

Erin Y Liu, Leah M Smith, Anne K Ellis, Heather Whitaker, Barbara Law, Jeffrey C Kwong, Paddy Farrington, Linda E Lévesque

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 7% of its field
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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  17. Prospective data linkage to facilitate COVID-19 trials - A call to action.International journal of population data science · 2020
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  18. Human papillomavirus (HPV) vaccine and autonomic disorders: a position statement from the American Autonomic Society.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2020
    Review
  19. Review
  20. Human Vaccines & Immunotherapeutics: News.Human vaccines & immunotherapeutics · 2018
    Article
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

8 authors at 1 institution in 1 country.

Erin Y LiuDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Leah M SmithDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Anne K EllisDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Heather WhitakerDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Barbara LawDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Jeffrey C KwongDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Paddy FarringtonDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont.
Linda E LévesqueDepartment of Public Health Sciences (Liu, Lévesque), Queen's University, Kingston, Ont.; Department of Epidemiology, Biostatistics and Occupational Health (Smith), McGill University, Montréal, Que. Division of Allergy and Immunology, Department of Medicine (Ellis), Queen's University, Kingston, Ont.; Allergy Research Unit (Ellis), Kingston General Hospital, Kingston, Ont.; School of Mathematics and Statistics (Whitaker, Farrington), The Open University, Milton Keynes, UK; Vaccine Safety Section, Centre for Immunization and Respiratory Infectious Diseases (Law [retired from the Public Health Agency of Canada June 2015]), Public Health Agency of Canada, Ottawa, Ont.; Institute for Clinical Evaluative Sciences (Kwong, Lévesque), Toronto, Ont.; Public Health Ontario (Kwong), Toronto, Ont.; Department of Family and Community Medicine (Kwong), University of Toronto, Toronto, Ont.; Leslie Dan Faculty of Pharmacy (Lévesque), University of Toronto, Toronto, Ont. linda.levesque@utoronto.ca.
The Open University · GB

Funding

Medical Research Council MR/L009005/1
6 · The paper itself

Abstract

backgroundDespite demonstrated effectiveness in real-world settings, concerns persist regarding the safety of the quadrivalent human papillomavirus (HPV4) vaccine. We sought to assess the risk of autoimmune disorders following HPV4 vaccination among grade 8 girls eligible for Ontario's school-based HPV vaccination program.

methodsWe undertook a population-based retrospective cohort study using Ontario's administrative health and vaccination databases from 2007 to 2013. The self-controlled case series method was used to compare the rate of a composite end point of autoimmune disorders diagnosed during days 7-60 post-vaccination ("exposed" follow-up) to that at any other time ("unexposed"). The analysis was repeated to assess the effect of a history of immune-mediated diseases and time since vaccination. We also conducted an exploratory analysis of individual autoimmune disorders. Rate ratios and 95% confidence intervals (CIs) were estimated using conditional Poisson regression, adjusted for age, seasonality, concomitant vaccinations and infections.

resultsThe study cohort consisted of 290 939 girls aged 12-17 years who were eligible for vaccination between 2007 and 2013. There was no significant risk for developing an autoimmune disorder following HPV4 vaccination (

interpretationWe did not observe an increased risk of autoimmune disorders following HPV4 vaccination among teenaged girls. These findings should reassure parents and health care providers.

Indexed as

Papillomavirus VaccinesAdolescentAutoimmune DiseasesFemaleHumansOntarioPapillomavirus InfectionsPatient Acceptance of Health CarePatient SafetyRetrospective StudiesVaccinationPapillomavirus Vaccines

Identifiers

PMID29807937
PMCPMC5973886
OpenAlexW2803870634

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.