Predictors of severe perineal lacerations in Chinese women
Objective: Chinese women have been shown to have a higher incidence of severe perineal laceration compared to other ethnic groups. We sought to test the hypothesis that this risk is related to body mass index (BMI) or to a relative fetal-maternal size disproportion as measured by the ratio of the ne...
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Published in | Journal of perinatal medicine Vol. 37; no. 2; pp. 109 - 113 |
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Main Authors | , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Berlin
Walter de Gruyter
01.03.2009
De Gruyter |
Subjects | |
Online Access | Get full text |
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Summary: | Objective: Chinese women have been shown to have a higher incidence of severe perineal laceration compared to other ethnic groups. We sought to test the hypothesis that this risk is related to body mass index (BMI) or to a relative fetal-maternal size disproportion as measured by the ratio of the newborn birthweight to maternal BMI (BW:BMI). Methods: A retrospective cohort study was performed using a pre-existing obstetric database. Third- and fourth-degree perineal lacerations served as the primary outcome of interest. Logistic regression was used to compare Chinese women to other ethnic groups and adjust for confounders. Results: Three thousand and eighty-five singleton vaginal deliveries were identified, with BMI data available for 2281. Chinese women had a greater risk for severe perineal laceration compared to Caucasian (OR: 3.22; 95% CI: 0.73–14.32) and Hispanic women (OR: 2.88; 95% CI: 1.92–4.30). Multivariate analysis found that newborn birth weight plays a role (OR: 1.0012; 95% CI: 1.0007–1.0016), but BMI alone did not explain the discrepancy (P=0.89). However, the BW:BMI ratio appears to be a stronger predictor of laceration rate than either variable alone (OR: 1.011; 95% CI: 1.003–1.020). Conclusion: The higher risk of severe perineal laceration in Chinese women compared to other ethnicities can be attributed, in part, to a relative fetal-maternal size disproportion. |
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Bibliography: | ark:/67375/QT4-KWCLTT06-2 ArticleID:jpm.2009.035 jpm.2009.035.pdf istex:275D9CA533626FB03F3A409BBAC7ACFD36A719CB ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0300-5577 1619-3997 |
DOI: | 10.1515/JPM.2009.035 |