ReviewAnnals of medicine and surgery (2012)2025
A systematic review of COVID-19's impact on pregnancy outcomes.
Review in Annals of medicine and surgery (2012), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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
2 citing papers in PubMed.
- COVID-19 and Global Perinatal Health: Lessons Learned on Maternal-Neonatal Outcomes, Infant Feeding Practices, and Health Care Economics across Income Settings.American journal of perinatology · 2026Article
- Living with risk and uncertainty: a qualitative phenomenological study of women's pregnancy and postpartum experiences in Saskatchewan during COVID-19.BMC pregnancy and childbirth · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Contradictory data exists regarding COVID-19's impact on pregnancy outcomes. This study will compare pandemic pregnancy outcomes to pre-pandemic levels in local, regional, and national populations. Methods: We searched three international electronic databases (PubMed) for research on COVID-19 infection and pregnancy outcomes from the first accessible to 10 December 2021. We included articles on COVID-19's effects on pregnancy, maternal, and neonatal outcomes, using pregnancy as the main endpoint. Results: Twenty-eight studies were examined. The exposed population sampled 1 476 827, and the total sample was 23 819 822. One-third of studies found a pandemic-related increase in maternal mortality. Six of fourteen stillbirth studies showed a substantial increase. Ten of fourteen studies found no substantial increase in preterm birth rates. After the pandemic, postnatal depression, maternal anxiety, or both increased in five of nine mother mental health studies. Conclusion: There is a significant increase in postnatal maternal mental disorders and a probable increase in maternal mortality and stillbirth compared to before the pandemic. However, our study's findings might result from healthcare inefficiency. COVID-19 vaccination is highly recommended for pregnant and breastfeeding women.
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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.