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Racial and ethnic differences in the prevalence of placenta previa
L H Kim1, A B Caughey, J C Laguardia
1Department of Obstetrics, Gynecology & Reproductive, Sciences, University of California, San Francisco, CA, USA. kimlh@obgyn.ucsf.edu
Summary
Asian and African American women have a higher risk of placenta previa. This study analyzed prevalence across racial and ethnic groups, finding significant disparities in placenta previa occurrence.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Health
- Epidemiology
Background:
- Placenta previa is a condition where the placenta partially or completely covers the cervix.
- Understanding demographic variations in placenta previa prevalence is crucial for targeted prenatal care.
- Previous research indicates potential ethnic and racial disparities, necessitating further investigation.
Purpose of the Study:
- To determine the prevalence of placenta previa across major racial and ethnic groups.
- To identify specific demographic factors associated with an increased risk of placenta previa.
- To inform public health strategies for maternal-fetal health.
Main Methods:
- Retrospective cohort study of 394,083 deliveries from 1995-2006 in Northern California.
- Analysis of placenta previa prevalence among Asian, Native American, African American, Caucasian, and Hispanic populations.
- Multivariable logistic regression used to adjust for potential confounding variables.
Main Results:
- Overall placenta previa prevalence was 0.40% (1580/394,083 deliveries).
- Prevalence varied significantly by race/ethnicity: Asian (0.64%), Native American (0.60%), African American (0.44%), Caucasian (0.36%), Hispanic (0.34%).
- Asian (OR 1.73) and African American (OR 1.43) women showed increased risk compared to Caucasians, after controlling for confounders.
Conclusions:
- Asian women exhibit the highest prevalence of placenta previa.
- Racial and ethnic disparities in placenta previa risk are evident.
- These findings highlight the need for culturally sensitive prenatal care and risk assessment.
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