Cited by 150Preterm Birth and ChorioamnionitisInfant Development and Preterm CareAssisted Reproductive Technology and Twin Pregnancy

Maternal effects for preterm birth: a genetic epidemiologic study of 630,000 families.

Svensson, Anna C., Sandin, Sven, Cnattingius, Sven, Reilly, Marie, Pawitan, Yudi, Hultman, Christina M., Lichtenstein, Paul·2009·American Journal of Epidemiology

Abstract

This study was undertaken to disentangle the maternal genetic from the fetal genetic effects for preterm birth and to study the possibility of these effects being explained by known risk factors. By cross-linking of the population-based Swedish Multigeneration and Medical Birth registers, 989,027 births between 1992 and 2004 were identified. Alternating logistic regression was applied to model the familial clustering with pairwise odds ratios (PORs), and covariates were included to evaluate if the familial aggregation was explained by exposure to shared risk factors. Generalized linear mixed models were used to estimate the contribution of genetic and environmental effects. Sisters of women who had a preterm delivery had themselves an increased odds of having a preterm delivery (POR = 1.8, 95% confidence interval: 1.5, 2.1), while there was no corresponding increase in odds in families joined by brothers (POR = 1.1, 95% confidence interval: 0.9, 1.4). Twenty-five percent of the variation in preterm birth was explained by maternal genetic factors, whereas fetal genetic factors only marginally influenced the variation in liability. The increased odds ratio between offspring of sisters was independent of maternal risk factors for preterm birth, suggesting that the relative importance of maternal effects is not explained by these well-known risk factors.

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Crossref · 10.1093/aje/kwp328

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Authors
Svensson, A. C., Sandin, S., Cnattingius, S., Reilly, M., Pawitan, Y., Hultman, C. M., & Lichtenstein, P.
Affiliations
Karolinska Institutet (SE)
Corresponding author
Svensson, Anna C.
Venue
American Journal of Epidemiology
Published
2009-10-23
Volume
170
Issue
11
Pages
1365-1372
ISSN
  • 0002-9262 (ISSN-L)
  • 1476-6256
OpenAlex
W2137514719
Cited by
150
References
39
Citations by year
2026: 3 · 2025: 12 · 2024: 11 · 2023: 13 · 2022: 6 · 2021: 5 · 2020: 6 · 2019: 10 · 2018: 10 · 2017: 14 · 2016: 10 · 2015: 9 · 2014: 7 · 2013: 13 · 2012: 10
FWCI
4.72
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Epidemiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Preterm Birth and Chorioamnionitis
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Infant Development and Preterm Care
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Assisted Reproductive Technology and Twin Pregnancy
Keywords
preterm birth, maternal genetic effects, familial aggregation, shared risk factors, sisters, brothers, genetic epidemiology, environmental effects
MeSH terms
Birth Certificates, Female, Humans, Mothers, Pedigree, Pregnancy, Registries, Risk Factors, Sweden, Prevalence, Confidence Intervals, Logistic Models, Odds Ratio, Siblings, Premature Birth

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