Effects of interpregnancy intervals on preterm birth, intrauterine growth retardation, and fetal loss.
This study examines the magnitude and shape of the interpregnancy interval (IPI) effect on three pregnancy outcomes: preterm low birthweight (PRETERM-LBW), intrauterine growth-retardation low birthweight (IUGR-LBW), and fetal loss (LOSS). A multinomial logistic regression model is estimated, based on data from the 1988 National Survey of Family Growth which contains pregnancy histories. The results indicate that both short and long intervals raise the risk of IUGR-LBW and LOSS, net of sociodemographic and behavioral variables, but IPI effects on PRETERM-LBW are not clear.
Kallan
J E
JE
Office of Scientific and Engineering Personnel, National Research Council, Washington, DC 20418.
D000293:Adolescent; D000328:Adult; D015982:Bias; D001721:Birth Intervals; D004522:Educational Status; D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D005317:Fetal Growth Retardation / Q000453:epidemiology*; D006306:Health Surveys; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D016015:Logistic Models; D008423:Maternal Age; D044469:Racial Groups; D012307:Risk Factors; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology