ArticleAmerican journal of preventive medicine2021
Temporal Trends in Undervaccination: A Population-Based Cohort Study.
Article in American journal of preventive medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Partisan differences in childhood measles vaccination and general refusals: a retrospective cohort study of electronic health records in the United States, 1988-2024.Lancet regional health. Americas · 2026Article
- Decision-making for pediatric vaccination scheduling under multiple constraints: a case study from ChinaFrontiers in public health · 2026Article
- Early Childhood Vaccination Coverage and Patterns by Rural-Urban Commuting Area.American journal of preventive medicine · 2025Article
- Pediatric Vaccine Hesitancy in the United States-The Growing Problem and Strategies for Management Including Motivational Interviewing.Vaccines · 2025Review
- The impact of social vulnerability on primary vaccine coverage in children with sickle cell disease.Frontiers in public health · 2025Article
- Characterizing timeliness of recommended vaccinations among privately-insured children in the United States, 2009-2019.Vaccine · 2024Article
- Review
- Failure to Complete Multidose Vaccine Series in Early Childhood.Pediatrics · 2023Article
- Evaluating vaccination coverage and timeliness in American Indian/Alaska Native and non-Hispanic White children using state immunization information system data, 2015-2017.Preventive medicine reports · 2022Article
- Article
- The Childhood Vaccination Schedule and the Lack of Association With Type 1 Diabetes.Pediatrics · 2021Article
- Identification of Spatial Clusters of Undervaccination Patterns Among Children Aged <24 Months Using Immunization Information System Data, Montana, 2015-2019.Public health reports (Washington, D.C. : 1974)Article
- Beyond Vaccination Coverage: Population-Based Measurement of Early Childhood Immunization Schedule Adherence.Academic pediatricsReview
- National trends in patterns of under-vaccination in early childhood: National Immunization Survey-Child, United States, 2011-2021.Expert review of vaccinesArticle
- Estimating Vaccine Hesitancy in Colorado by Using Immunization Information System Data.Public health reports (Washington, D.C. : 1974)Article
Corrections and comments
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Authors and funding
14 authors.
Funding
Abstract
introductionMonitoring the trends in undervaccination, including that because of parental vaccine refusal or delay, can inform public health responses directed at improving vaccine confidence and vaccination coverage.
methodsA retrospective cohort study was conducted in the Vaccine Safety Datalink. The cohort included all children born in 2004-2017 with ≥3 well-child visits between ages 2 and 23 months. Using electronic health record-based vaccination data, the average days undervaccinated was calculated for each child. Undervaccination patterns were assessed through age 23 months. Temporal trends were inspected for inflection points and were analyzed using linear regression. Nested within the cohort study, a survey was conducted to compare parent reports of vaccine refusal or delay with observed vaccination patterns. Data were analyzed in 2020.
resultsThe study cohort consisted of 808,170 children. The percentage of children with average days undervaccinated=0 (fully vaccinated, no delays) rose from a nadir of 47.1% for the birth year 2008 to 68.4% for the birth year 2017 (p
conclusionsIn a 14-year cohort study, vaccination timeliness has improved. However, the small but increasing number of children who received no vaccines by age 23 months warrants additional attention.
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