ArticleObstetrics & gynecology science2022
COVID-19 and vaccination during pregnancy: a systematic analysis using Korea National Health Insurance claims data.
Article in Obstetrics & gynecology science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Safety of BNT162b2 COVID-19 Vaccine in Pregnancy: A Systematic Review.Infectious diseases and therapy · 2026Pooled it
- Factors influencing COVID-19 vaccination intentions and the moderating effect of perceived behavioral control among pregnant women: a cross-sectional study applying the revised Theory of Planned Behavior.Women's health nursing (Seoul, Korea) · 2025Article
- Trends, statistics, and policy recommendations on maternal, fetal, and infant mortality before and after COVID-19: a review of the past decade (2012-2022) based on national health information data.Obstetrics & gynecology science · 2025Article
- COVID-19 (SARS-CoV-2) mRNA vaccination does not affect basal sex hormone levels (follicle-stimulating hormone, luteinizing hormone, estradiol) in reproductive-age women.Clinical and experimental reproductive medicine · 2024Article
- Assessing the Impact of COVID-19 Vaccination on Preterm Birth: A Systematic Review with Meta-Analysis.Vaccines · 2024Review
- Safety of COVID-19 Vaccination During Pregnancy and Lactation: A VigiBase Analysis.Journal of Korean medical science · 2024Article
- Effects of COVID-19 vaccination on human fertility: a post-pandemic literature review.Annals of medicine · 2023Review
- Effectiveness and Safety of COVID-19 Vaccination During Preconceptional and Preclinical Pregnancy Period: A National Population Study.Journal of Korean medical science · 2023Article
- The coronavirus disease 2019 infection in pregnancy and adverse pregnancy outcomes: a systematic review and meta-analysis.Obstetrics & gynecology science · 2023Article
- The introduction to air pollution on pregnancy outcome (APPO) study: a multicenter cohort study.Obstetrics & gynecology science · 2023Article
- Pregnancy and COVID-19: past, present and future.Obstetrics & gynecology science · 2023Article
- The impact of maternal SARS-CoV-2 infection and COVID-19 vaccination on maternal-fetal outcomes.Reproductive toxicology (Elmsford, N.Y.) · 2022Review
- Maternal and Neonatal Outcomes in Pregnant Women With Coronavirus Disease 2019 in Korea.Journal of Korean medical science · 2022Observational
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveThis study systematically analyzed coronavirus disease 2019 (COVID-19) and vaccination details during pregnancy by using the national health insurance claims data.
methodsPopulation-based retrospective cohort data of 12,399,065 women aged 15-49 years were obtained from the Korea National Health Insurance Service claims database between 2019 and 2021. Univariate analysis was performed to compare the obstetric outcomes of pregnant women (ICD-10 O00-O94) and their newborns (ICD-10 P00-P96) with and without COVID-19. Univariate analysis was also performed to compare the age and obstetric outcomes of pregnant women receiving different types of vaccines.
resultsThe percentage of pregnant women with COVID-19 during pregnancy was 0.11%. Some obstetric outcomes of pregnant women with COVID-19, including the rates of preterm birth or cesarean delivery, were significantly better than those of pregnant women without COVID-19. The rate of miscarriage was higher in pregnant women with COVID-19 than without COVID-19. However, the outcomes of newborns of women with and without COVID-19 were not significantly different. Regarding vaccination type, obstetric outcomes of pregnant women appeared to be worse with the viral vector vaccine than with the mRNA vaccine.
conclusionTo the best of our knowledge, this is the first study to systematically analyze COVID-19 and vaccination details during pregnancy using the national health insurance claims data in Korea. The obstetric outcomes in pregnant women with and without COVID-19 and their newborns were similar.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.