SynthesisPublic health2022
Impacts of COVID-19 pandemic on preterm birth: a systematic review and meta-analysis.
Synthesis in Public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07531134 (Do Extreme Environmental and Security-related Conditions Affect the Rates of Prematurity and Low Birth Weight?), which is not on this map. Cited by 25 papers, 3 of them syntheses that pooled it.
What it found
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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.
Do Extreme Environmental and Security-related Conditions Affect the Rates of Prematurity and Low Birth Weight?
Who cites it
25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 40 citations in OpenAlex.
- Preterm Birth and Perinatal Mortality During the COVID-19 Pandemic Period: A Systematic Review and Meta-Analysis.Journal of paediatrics and child health · 2026Pooled it
- The impact of COVID-19 mitigation measures on neonatal health outcomes in sub-Saharan Africa: A systematic review and meta-analysis.Public health · 2025Pooled it
- Effect of COVID-19 on Pregnancy and Neonate's Vital Parameters: A Systematic Review.Journal of pregnancy · 2023Pooled it
- Right-sizing Incentives.Journal of development economics · 2026Article
- Temporal trends in pregnancy outcomes during a health system shock.Communications medicine · 2026Article
- Midwest Racial and Mental Health Disparities in Pregnancy Outcomes Throughout the COVID-19 Pandemic: A Retrospective Study.Health science reports · 2026Article
- Mendelian randomization study: investigating the causal impact of Covid-19 on adverse pregnancy outcomes.Virology journal · 2026Article
- Changes in the quantity and quality of births after the COVID-19 pandemic: an interrupted time series analysis of two million births in Southwest China.BMC pregnancy and childbirth · 2026Article
- Morphological Changes in the Placenta of Patients with COVID-19 During Pregnancy.Diagnostics (Basel, Switzerland) · 2025Article
- Impact of COVID-19 Infection Rates on Pregnancy Outcomes and Disparities in Florida.Maternal and child health journal · 2025Article
- Mathematical Modeling of Obstetric Variables: Influence of COVID-19, Periodontal Disease and Dental Care During Pregnancy.Biomedicines · 2025Article
- The impact of COVID-19 infection on neonatal birth weight and outcomes.Pregnancy (Hoboken, N.J.) · 2025Article
- Explaining the sharp decline in birth rates in Canada and the United States in 2020.American journal of epidemiology · 2025Article
- Neighborhood income inequality, maternal relative deprivation and neonatal health in Sweden: A cross-sectional study using individually defined multi-scale contexts.SSM - population health · 2025Article
- The Effectiveness and Influence of COVID-19 Vaccination on Perinatal Individuals and Their Newborns: An Updated Meta-Analysis.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2025Review
- Analysis of anthropometric outcomes in Indian children during the COVID-19 pandemic using National Family Health Survey data.Communications medicine · 2024Article
- Socioeconomic disparities in changes to preterm birth and stillbirth rates during the first year of the COVID-19 pandemic: a study of 21 European countries.European journal of public health · 2024Article
- Impacts of maternal COVID-19 during pregnancy on neonatal health and epidemiology.Clinical and experimental pediatrics · 2024Article
- Assessing the Impact of COVID-19 Vaccination on Preterm Birth: A Systematic Review with Meta-Analysis.Vaccines · 2024Review
- Preterm birth and stillbirth during COVID-19 pandemic in Bihor County/Romania.Frontiers in reproductive health · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThe COVID-19 pandemic has significantly affected healthcare systems and daily well-being. However, the reports of the indirect impacts of the pandemic on preterm birth remain conflicting. We performed a meta-analysis to examine whether the pandemic altered the risk of preterm birth. STUDY
designThis was a systematic review and meta-analysis of the previous literature.
methodsWe searched MEDLINE and Embase databases until March 2022 using appropriate keywords and extracted 63 eligible studies that compared preterm between the COVID-19 pandemic period and the prepandemic period. A random effects model was used to obtain the pooled odds of each outcome. The study protocol was registered with PROSPERO (No. CRD42022326717).
resultsThe search identified 3827 studies, of which 63 reports were included. A total of 3,220,370 pregnancies during the COVID-19 pandemic period and 6,122,615 pregnancies during the prepandemic period were studied. Compared with the prepandemic period, we identified a significant decreased odds of preterm birth (PTB; <37 weeks' gestation; pooled odds ratio [OR; 95% confidence interval (CI)] = 0.96 [0.94, 0.98]; I
conclusionPooled results suggested the COVID-19 pandemic was associated with preterm birth, although there was only a borderline significant reduction for very PTB during the pandemic compared with the prepandemic period. Large studies showed conflicting results, and further research on whether the change is related to pandemic mitigation measures was warranted.
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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.