Delayed prenatal care and the risk of low birth weight delivery.
To determine if the timing of prenatal care is associated with low birth weight delivery after adjusting for sociodemographic and behavioral risk factors, we performed a retrospective cross-sectional study of singleton births to white (2,945,595) or African-American (552,068) women in the United States in 1996. When adjusted for race, maternal age, educational level attained, and the use of alcohol and tobacco during pregnancy, women beginning care in the 2nd (adjusted RR = 0.85; 95% CI: 0.83-0.86) and 3rd trimesters (RR = 0.87; 95% CI: 0.84-0.91) had a reduced risk of low birth weight compared to women beginning care in the 1st trimester. Our findings suggest that no benefit exists for early initiation of prenatal care for reducing the risk of low birth weight. Findings related to differences in low birth weight among women who start prenatal care later are likely due to sociodemographic differences that may influence access to early care.
Hueston
William J
WJ
Department of Family Medicine, Medical University of South Carolina, Charleston, SC 29425, USA. huestonwj@musc.edu
Gilbert
Gregory E
GE
Davis
Lucy
L
Sturgill
Vanessa
V
D000328:Adult; D001741:Black or African American / Q000523:psychology* / Q000706:statistics & numerical data; D000428:Alcohol Drinking / Q000009:adverse effects / Q000517:prevention & control; D001719:Birth Certificates; D003430:Cross-Sectional Studies; D004522:Educational Status; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D010342:Patient Acceptance of Health Care / Q000208:ethnology*; D011247:Pregnancy; D037841:Pregnant People / Q000208:ethnology* / Q000523:psychology; D011295:Prenatal Care / Q000706:statistics & numerical data*; D012044:Regression Analysis; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects; D000074606:Smoking Prevention; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology; D044465:White People / Q000523:psychology* / Q000706:statistics & numerical data