Validity of self-reported pregravid weight

Yu, Stella M.; Nagey, David A.

doi:10.1016/1047-2797(92)90016-j

Cited by 94 publications

(67 citation statements)

References 11 publications

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“…If recalled prepregnancy weight was not available (4.7% of subjects) then the first measured weight between 1 and 15 weeks' gestation was used, with a correction factor for the week of measurement. Recalled prepregnancy weight has been shown to be consistent with clinical records (24,25).…”

Section: Covariatesmentioning

confidence: 82%

The Association Between Impaired Glucose Tolerance and Birth Weight Among Black and White Women in Central North Carolina

et al. 2003

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OBJECTIVE -This study examines the relationship of glucose intolerance during pregnancy to birth weight among black and white participants of the Pregnancy, Infection, and Nutrition Study.RESEARCH DESIGN AND METHODS -This prospective cohort study recruited women from prenatal clinics in central North Carolina at 24 -29 weeks' gestation. A 1-h 50-g glucose challenge test (GCT) and 100-g oral glucose tolerance test (OGTT) were conducted. Impaired glucose tolerance (IGT) was defined as one high value on the OGTT, gestational diabetes mellitus (GDM) as two or more high values, and normal glucose tolerance (NGT) was defined as a low or high value on the GCT screen but no high values on the OGTT. Women with known glucose status and birth outcome information were included in this analysis (n ϭ 2055).RESULTS -Black women with IGT had higher rates of both macrosomia (38.5%) and large for gestational age (LGA) (53.9%) compared with white women (10.0% and 13.2%). Black infants' birth weights (3,800 g) and prevalence of macrosomia and LGA were significantly higher among mothers with IGT compared with NGT women (birth weight, 3,184 g; macrosomia, 7.0%; LGA, 11.6%). In contrast, among white infants, there was no significant increase in birth weight, macrosomia, or LGA associated with the mother's glucose tolerance status. In addition, there was no effect of GDM on birth weight in either group.CONCLUSIONS -This study suggests that, independent of maternal prepregnant weight, there may be significant increased risk of macrosomia among black IGT women but not among white IGT women. Further investigations into factors that may contribute to the observed results are needed. Diabetes Care 26:656 -661, 2003

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Section: Covariatesmentioning

confidence: 82%

The Association Between Impaired Glucose Tolerance and Birth Weight Among Black and White Women in Central North Carolina

et al. 2003

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“…Na literatura científica internacional, alguns trabalhos abordavam notadamente a população de gestantes 12,13,14,15,16 . Não foram encontradas pesquisas brasileiras neste grupo populacional.…”

Section: Introductionunclassified

Estudo da validação das informações de peso e estatura em gestantes atendidas em maternidades municipais no Rio de Janeiro, Brasil

et al. 2004

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Os objetivos principais deste artigo são a avaliação da concordância entre as informações de peso e estatura medidas e referidas, bem como a identificação das principais características de 150 gestantes que souberam ou não referir seu peso anterior, peso final e estatura. Os resultados evidenciam que as informações referidas para o peso anterior aproximam-se dos valores medidos (coeficiente de correlação de Pearson (0,96) e intraclasse (0,92); p < 0,05), o mesmo ocorrendo em relação à variável peso final (coeficiente de correlação de Pearson (0,96) e intraclasse (0,95); p < 0,05). Contudo, a análise de regressão linear é capaz de detectar que essa relação é problemática para a variável estatura (beta0 = 45,5 e beta1 = 0,71; p < 0,05) e, portanto, as informações referidas para esta devem ser utilizadas com cautela quando os valores medidos não estiverem disponíveis. Quanto à caracterização do grupo de gestantes que não informaram as três medidas (n = 141), elas são as de menor nível de instrução (63,9%), as que não fizeram ou menos freqüentaram o pré-natal (64,3%) e as que deram entrada no pré-natal mais tardiamente - já no segundo ou terceiro trimestre (59,3%).

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“…Previous studies have reported similar mean differences for women. 13,22,23 We also assessed the agreement of the self-reported weights with ®rst trimester weights from antenatal visits. We selected the ®rst weight measured between 1 and 13 weeks gestation, mean: 9.5 AE 2.1 (s.d.)…”

Section: Data Collectionmentioning

confidence: 99%

Does the pattern of postpartum weight change differ according to pregravid body size?

2001

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OBJECTIVES: To examine differences in the pattern of weight changes during and after pregnancy among four pregravid body mass index (BMI) groups. STUDY DESIGN: Prospective cohort study of women who had two consecutive births at the University of California, San Francisco (UCSF) between 1980 and 1990. MEASUREMENTS: Maternal body weights were available before conception and delivery, and at 6 weeks postpartum for the ®rst (index) pregnancy, and before conception for the second study pregnancy. Height and two pregravid weights were selfreported. Weights at delivery and 6 weeks postpartum were measured. Net delivery weight was de®ned as delivery weight minus infant birth weight. Three non-overlapping sequential weight changes were constructed: (1) net gestational gain (net delivery weight minus pregravid weight at the index pregnancy); (2) early net postpartum weight change (6-week postpartum weight minus net delivery weight); and (3) late postpartum weight change (pregravid weight at the second pregnancy minus 6-week postpartum weight). SUBJECTS: A total of 985 healthy women (age 18 ± 41 y) from four raceaethnicity groups (Asian, Hispanic, black and white) who had a singleton, full-term, live birth for the index pregnancy followed by a second consecutive birth. RESULTS: Four raceaethnicity groups were combined (no interaction) to contrast average weight changes among pregravid BMI groups. Means adjusted for eight covariates (parity, raceaethnicity, education, mode of delivery, smoking, hypertension of pregnancy, age, height) and time intervals were not altered appreciably. Early net postpartum weight losses were similar for all pregravid BMI groups. Late (median of 2 y) postpartum weight losses were 4 kg higher in the low and average BMI groups compared with the highest BMI group. About half of the net gestational gain was lost by 6 weeks postpartum, and the percentage that was lost decreased over time. CONCLUSIONS: This study suggests that early postpartum weight loss does not vary by maternal pregravid BMI group, but late postpartum weight change does. Serial weight measurements are needed in epidemiologic studies to differentiate retention of gestational gain from weight gain during the late postpartum period.

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Validity of self-reported pregravid weight

Cited by 94 publications

References 11 publications

The Association Between Impaired Glucose Tolerance and Birth Weight Among Black and White Women in Central North Carolina

The Association Between Impaired Glucose Tolerance and Birth Weight Among Black and White Women in Central North Carolina

Estudo da validação das informações de peso e estatura em gestantes atendidas em maternidades municipais no Rio de Janeiro, Brasil

Does the pattern of postpartum weight change differ according to pregravid body size?

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