Evidence map›Paper›PMID 31277611›Full record

ArticleBMC public health2019

Coverage and determinants of influenza vaccine among pregnant women: a cross-sectional study.

Vittoria Offeddu, Clarence C Tam, Tze Tein Yong, Lay Kok Tan, Koh Cheng Thoon, Nicole Lee, Thiam Chye Tan, George S H Yeo, Chee Fu Yung

Abstract read
In one paragraph

Article in BMC public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Knowledge and attitudes of pregnant women about COVID-19 vaccination.Revista latino-americana de enfermagem · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

9 authors.

Vittoria OffedduSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 117549, Singapore.
Clarence C TamSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 117549, Singapore.
Tze Tein YongSingapore General Hospital, Singapore, 169608, Singapore.
Lay Kok TanSingapore General Hospital, Singapore, 169608, Singapore.
Koh Cheng ThoonKK Women's and Children's Hospital, Singapore, 229899, Singapore.
Nicole LeeKK Women's and Children's Hospital, Singapore, 229899, Singapore.
Thiam Chye TanKK Women's and Children's Hospital, Singapore, 229899, Singapore.
George S H YeoKK Women's and Children's Hospital, Singapore, 229899, Singapore.
Chee Fu YungKK Women's and Children's Hospital, Singapore, 229899, Singapore. yung.chee.fu@singhealth.com.sg.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPregnant women are at increased risk of influenza-related complications. The World Health Organisation recommends influenza vaccination to this high-risk population as highest priority. However, achieving high influenza vaccine coverage among pregnant women remains challenging. We conducted a cross-sectional survey to estimate the coverage and determinants of influenza vaccination among pregnant women in Singapore.

methodsBetween September and November 2017, pregnant women aged ≥21 years were recruited at two public hospitals in Singapore. Participants completed an anonymous, self-administered online questionnaire assessing participants' influenza vaccination uptake, knowledge of and attitudes towards influenza and the influenza vaccine, vaccination history, willingness to pay for the influenza vaccine, and external cues to vaccination. We estimated vaccine coverage and used multivariable Poisson models to identify factors associated with vaccine uptake.

resultsResponse rate was 61% (500/814). Only 49 women (9.8, 95% Confidence Interval (CI): 7.3-12.7%) reported receiving the vaccine during their current pregnancy. A few misconceptions were identified among participants, such as the belief that influenza can be treated with antibiotics. The most frequent reason for not being vaccinated was lack of recommendation. Women who were personally advised to get vaccinated against influenza during pregnancy were 7 times more likely to be vaccinated (prevalence ratio (PR) = 7.11; 95% CI: 3.92-12.90). However, only 12% of women were personally advised to get vaccinated. Other factors associated with vaccine uptake were vaccination during a previous pregnancy (PR = 2.51; 95% CI: 1.54-4.11), having insurance to cover the cost of the vaccine (PR = 2.32; 95% CI: 1.43-3.76), and higher vaccine confidence (PR = 1.62; 95% CI: 1.30-2.01).

conclusionsInfluenza vaccination uptake among pregnant women in Singapore is low. There is considerable scope for improving vaccination coverage in this high-risk population through vaccination recommendations from healthcare professionals, and public communication targeting common misconceptions about influenza and influenza vaccines.

Indexed as

AdultCross-Sectional StudiesFemaleHealth Knowledge, Attitudes, PracticeHospitals, PublicHumansInfluenza, HumanInfluenza VaccinesMiddle AgedPregnancyPregnancy Complications, InfectiousPregnant PeopleRisk AssessmentSingaporeSurveys and QuestionnairesVaccination CoverageInfluenza VaccinesInfluenzaInfluenza vaccineMaternal vaccinationPregnancyVaccine recommendation

Identifiers

PMID31277611
PMCPMC6612156

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.