| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
American Journal of Epidemiology Vol. 150, No. 9: 947-956
Copyright © 1999 by The Johns Hopkins University School of Hygiene and Public Health
other |
Validity of Self-reported Pregnancy Delivery Weight: An Analysis of the 1988 National Maternal and Infant Health Survey
1Epidemic Intelligence Service, Epidemiology Program Office, Centers for Disease Control and Prevention Atlanta, GA
2Division of Nutrition and Physical Activity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention Atlanta, GA
3School of Public Health, University of Illinois at Chicago Chicago, IL
4Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention Atlanta, GA
Reprint requests to Dr. Laura A. Schieve, Division of Reproductive Health, Centers for Disease Control and Prevention, Mailstop K-34, 4770 Buford Highway, NE, Atlanta, GA 30341.
This study examined the validity of self-reported delivery weight among 3,518 respondents to the 1988 National Maternal and Infant Health Survey. Self-reported delivery weight was ascertained from a mail survey administered during the postpartum period. Measured delivery weight was obtained by abstraction of medical records from the hospital of delivery. On average, a woman's reported delivery weight was 2.82 pounds (1 pound =0.45 kg) less than her measured delivery weight (p <0.001). The level of underreporting increaded significantly with increases in prepregnancy body mass index current body mass index, pregnancy weight gain, and weight change from delivery to recall. Reporting error also increased among women who were non-White, less educated, and unmarried; whose pregnancy was unintended; and who initiated prenatal care late responded late to the survey questionnaire, became pregnant again before responding, and reported a delivery weight ending in zero. When reported delivery weight was used to calculate weight gain and was categorized into typical weight gain categories, 3040% of women were classified incorrectly. An empirical evaluation of how this misclassification might impact epidemiologic analyses indicated that associations between weight gain and birth weight were attenuated when weight gain was based on reported delivery weight rather than on measured delivery weight. Am J Epidemiol 1999;150;947-56.
body mass index; body weight; classification; pregnancy
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
L. G. Spector, S. M. Davies, L. L. Robison, J. M. Hilden, M. Roesler, and J. A. Ross Birth Characteristics, Maternal Reproductive History, and the Risk of Infant Leukemia: A Report from the Children's Oncology Group Cancer Epidemiol. Biomarkers Prev., January 1, 2007; 16(1): 128 - 134. [Abstract] [Full Text] [PDF] |
||||
