Evidence map›Paper›PMID 33956369›Full record

ArticlePaediatric and perinatal epidemiology2021

Accuracy of self-reported birth outcomes relative to birth certificate data in an Internet-based prospective cohort study.

Lauren A Wise, Tanran R Wang, Amelia K Wesselink, Sydney K Willis, Alina Chaiyasarikul, Jessica S Levinson, Kenneth J Rothman, Elizabeth E Hatch, David A Savitz

Abstract read
In one paragraph

Article in Paediatric and perinatal epidemiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–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

21 citing papers in PubMed.

  1. Article
  2. A Preconception Cohort Study of Nicotine Vaping and Incidence of Spontaneous Abortion.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Article
  3. Article
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  9. Article
  10. The Impact of Prenatal Yoga on Hip Mobility and Delivery Outcomes.International journal of exercise science · 2026
    Article
  11. Article
  12. Article
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  19. Review
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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

9 authors.

Lauren A WiseDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.ORCID 0000-0003-2138-3752
Tanran R WangDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
Amelia K WesselinkDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
Sydney K WillisDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.ORCID 0000-0002-6858-5450
Alina ChaiyasarikulDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
Jessica S LevinsonDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
Kenneth J RothmanDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
Elizabeth E HatchDepartment of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
David A SavitzDepartment of Epidemiology, Brown University School of Public Health, Providence, RI, USA.

Funding

Science/Technical CoreP2CHD041020 · NICHD · BROWN UNIVERSITY · PI ZHENCHAO QIAN · 2016 to 2026
$7.6M
An internet-based preconception cohort study in North America and DenmarkR01HD086742 · NICHD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI LAUREN A WISE · 2016 to 2026
$6.7M
A preconception cohort study of air pollution, fertility, and miscarriageR01ES028923 · NIEHS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI LAUREN A WISE, Amelia Kent Wesselink · 2018 to 2026
$4.3M
A preconception cohort study of environmental chemicals, fertility, and miscarriageR01ES029951 · NIEHS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WISE, LAUREN A · 2019 to 2023
$3.1M
Feasibility of an internet-based study of time-to-pregnancy in the United StatesR21HD072326 · NICHD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WISE, LAUREN A · 2013 to 2014
$337k
NICHD NIH HHS P2C HD041020NICHD NIH HHS R01 HD086742NICHD NIH HHS R21 HD072326NIEHS NIH HHS R01 ES028923NIEHS NIH HHS R01 ES029951
6 · The paper itself

Abstract

backgroundThe accuracy of birth outcome data provided by Internet-based cohort study participants has not been well studied.

methodsWe compared self-reported data on birth characteristics in Pregnancy Study Online (PRESTO), an Internet-based prospective cohort study of North American pregnancy planners, with birth certificate data. At enrolment, participants were aged 21-45 years, attempting conception, and not using fertility treatment. Women completed online questionnaires during preconception, early and late pregnancy, and postpartum. We requested birth certificate data during 2014-2019 from seven health departments in states with the most participants. After restricting to singleton births, we assessed specificity, sensitivity, and agreement comparing self-reported data from postpartum questionnaires with birth certificate data for gestational age at delivery (GA) and birthweight (grams). Our primary measure of self-reported GA (weeks) was calculated as [280-(due date-birth date)]/7. We used log-binomial regression to assess predictors of agreement.

resultsWe linked 85% (771/909) of women in selected states. Median age of women was 30 years (range: 21-42), 84% had ≥ 16 years of education, nearly 96% were married, 12% had household incomes <$50 000, 32% were parous, and 85% identified as non-Hispanic White. Median recall interval was 6 months. Among those with self-reported data, 89% reported the same GA as the birth certificate and 98% reported GA within 1 week of the birth certificate. Self-report of preterm birth (GA < 37 weeks) agreed with information from birth certificates for 100% of women; sensitivity was 100%, and specificity was 99%. Self-reported low birthweight (<2500 grams) agreed with birth certificates for 93% of women; sensitivity and specificity were 93% and ≥99%, respectively. Predictors of poorer agreement included higher parity and longer pregnancy attempt time for GA, and lower education and longer recall interval for birthweight.

conclusionSelf-reported data on GA and birthweight from an Internet-based cohort showed high accuracy compared with birth certificates.

Indexed as

Birth CertificatesPremature BirthAdultCohort StudiesFemaleHumansInfant, NewbornInternetPregnancyPregnancy OutcomeProspective StudiesSelf ReportYoung Adultagreementfertilityinternetmethodsprospective studies

Identifiers

PMID33956369
PMCPMC8380669

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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.