A population-based study of race-specific risk for preterm premature rupture of membranes

• Published in: American journal of obstetrics and gynecology Vol. 199; no. 4; pp. 373.e1 - 373.e7
• Main Authors: Shen, Tammy T., BS, DeFranco, Emily A., DO, Stamilio, David M., MD, MSCE, Chang, Jen Jen, PhD, Muglia, Louis J., MD, PhD
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Philadelphia, PA Mosby, Inc 01.10.2008; Elsevier
• Subjects: Adult; African Americans - statistics & numerical data; Biological and medical sciences; black; Delivery. Postpartum. Lactation; Diseases of mother, fetus and pregnancy; Disorders; Female; Fetal Membranes, Premature Rupture - ethnology; Gynecology. Andrology. Obstetrics; Humans; Medical sciences; Missouri - epidemiology; Multivariate Analysis; Obstetrics and Gynecology; Pregnancy; Pregnancy. Fetus. Placenta; preterm birth; preterm premature rupture of membranes; race; Recurrence; Risk Factors; Socioeconomic Factors; white; Missouri; preterm birth; preterm premature rupture of membranes; black; race; white; Pregnancy disorders; Gynecology; Risk factor; Race; Premature rupture of membrane; Delivery disorders; Epidemiology; Obstetrics; Public health
• ISSN: 0002-9378; 1097-6868
• DOI: 10.1016/j.ajog.2008.05.011

Objective The purpose of this study was to test the hypothesis that race is associated with the risk of preterm birth due to preterm premature rupture of membranes (PPROM) and its recurrence. Study Design We conducted a population-based cohort study using the Missouri Department of Health's maternally linked birth certificate database (1989-1997) to assess racial effects on the occurrence and recurrence of PPROM, while adjusting for socioeconomic and maternal medical risk factors (n = 644,462). Results Black mothers were more likely to have PPROM compared to white mothers (aOR, 2.3; 95% CI, 2.0-2.5). The magnitude of risk of PPROM for black mothers compared to white mothers was greatest at < 28 weeks of gestation (aOR 2.8, 95% CI, 2.5-3.2). Black mothers were at significantly higher risk of recurrent PPROM compared to white mothers (aOR 6.4, 95% CI, 3.7-11.0). Conclusion There is an overrepresentation in the occurrence and recurrence of PPROM in black mothers that persists after adjusting for known risk factors.