ArticleBMC pregnancy and childbirth2020
Maternal exposure to Wenchuan earthquake and prolonged risk of offspring birth outcomes: a natural experiment study.
Article in BMC pregnancy and childbirth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06110819 (Individual Training Given to Pregnant Women in the Earthquake Zone in Their Living Spaces, the Effect of Pregnancy Follow-up on Prenatal Comfort, Distress, Risk Perception and Birth Anxiety.), which is not on this map. Cited by 9 papers.
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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.
Individual Training Given to Pregnant Women in the Earthquake Zone in Their Living Spaces, the Effect of Pregnancy Follow-up on Prenatal Comfort, Distress, Risk Perception and Birth Anxiety.
Who cites it
9 citing papers in PubMed, 16 citations in OpenAlex.
- Disaster-related healthcare system disruption and maternal-neonatal outcomes.Frontiers in public health · 2026Article
- Experience of pregnant women living in temporary shelters post-earthquake: a phenomenological study.BMC pregnancy and childbirth · 2025Article
- The effects of an earthquake experienced during pregnancy and perinatal outcomes.Revista da Associacao Medica Brasileira (1992) · 2025Article
- Obstetric care for environmental migrants.Irish journal of medical science · 2024Review
- Consequences of Natural and Man-made Disasters on Pregnancy Outcomes and Complications: A Systematic Review.Archives of academic emergency medicine · 2024Review
- Prophylactic antibiotic use during labor and delivery in China: a nationwide, multicenter, hospital-based, cross-sectional study.BMC medicine · 2022Article
- Assessing Exposure to Unconventional Oil and Gas Development: Strengths, Challenges, and Implications for Epidemiologic Research.Current environmental health reports · 2022Review
- Birth Outcomes, Health, and Health Care Needs of Childbearing Women following Wildfire Disasters: An Integrative, State-of-the-Science Review.Environmental health perspectives · 2022Review
- Establishing Chinese Fetal Growth Standards: Why and How.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 5 institutions in 2 countries.
Funding
Abstract
backgroundThe prolonged effects of disasters on reproductive outcomes among the survivors are less studied, and the findings are inconsistent. We examined the associations of maternal exposure to the 2008 Wenchuan earthquake years before conception with adverse birth outcomes.
methodsWe included 73,493 women who delivered in 96 hospitals in 24 provinces and autonomous regions from the 2015/16 China Labor and Delivery Survey. We weighted the multivariable logistic models based on the combination of coarsened exact matching (CEM) weight and survey weight, and performed sex-stratified analysis to test whether associations of maternal earthquake exposure with adverse birth outcomes (Stillbirth, preterm birth [PTB], low birthweight [LBW], and small for gestational age [SGA]) varied by sex.
resultsThe bivariate models showed that the weighted incidence of each adverse birth outcome was higher in exposed group than unexposed group: stillbirth (2.00% vs. 1.33%), PTB (14.14% vs. 7.32%), LBW (10.82% vs. 5.76%), and SGA (11.32% vs. 9.52%). The multivariable models showed maternal earthquake exposure was only associated significantly with a higher risk of PTB in offspring among all births (adjusted risk ratio [aRR](95%CI):1.25(1.06-1.48), P = 0.010). The sex-stratified analysis showed the association was significant among male births (aRR (95%CI): 1.40(1.12-1.75),P = 0.002),but unsignificant among female births. The sensitivity analysis reported similar findings.
conclusionsThe 2008 Wenchuan earthquake exposure has a long-term effect on PTB. Maternal acute exposure to disasters could be a major monitor for long-term reproductive outcomes. More attention should be paid to the underlining reasons for disaster-related adverse birth outcomes.
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