Birth-weight of newborns to Chinese women subsequent to a previous abortion.
The mean birth-weight of firstborns of women was significantly higher when there was a previous abortion. The increase was 73.5 and 119.4 g in newborns of women with an induced and a spontaneous abortion respectively. This trend of significant increased birth-weight among firstborns of women with either a previous induced or spontaneous abortion continued for male infants, in recent migrants, and in subjects aged 20-24 and 30-34 years. Stepwise logistic regression analyses showed that a history of an induced or a spontaneous abortion increased the birth-weight of the firstborns, while short maternal stature and female newborn were associated with decreased birth-weight. For low birth-weight, a previous abortion was not selected into the regression models but short maternal stature and female newborns continue to contribute to low birth-weight. Prematurity and mean gestation were found not to be associated with previous abortion using logistic regression analyses.
Tan
T C
TC
Department of Community and Family Medicine, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories.
Chang
A M
AM
Rogers
M S
MS
D000028:Abortion, Induced; D000022:Abortion, Spontaneous; D000293:Adolescent; D000328:Adult; D001724:Birth Weight; D001827:Body Height; D003430:Cross-Sectional Studies; D005260:Female; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D012044:Regression Analysis