Diabetes Care, Vol 20, Issue 7 1066-1072, Copyright © 1997 by American Diabetes Association
Growth patterns of large-for-gestational-age and appropriate-for-gestational-age infants of gestational diabetic mothers and control mothers at age 1 year
BR Vohr and ST McGarvey
Department of Pediatrics, Woman & Infants Hospital, Brown University School of Medicine, Providence, Rhode Island 02905, USA.
OBJECTIVE: The purpose of this study was to explore the development of
adiposity in macrosomic and normosomic infants of mothers with gestational
diabetes mellitus (GDM) and control subjects between birth and age 1 year,
and assess its relation to maternal prenatal factors and neonatal factors.
RESEARCH DESIGN AND METHODS: This was a prospective observational study of
192 infants, including 47 large-for-gestational-age (LGA) infants of GDM
mothers, 47 appropriate-for-gestational-age (AGA) infants of GDM mothers,
55 LGA control infants, and 44 AGA control infants who were evaluated at
birth and age 1 year. Maternal prenatal and pregnancy anthropometric
measurements were recorded. Multiple infant anthropometric measurements,
including skinfold thicknesses, were obtained at birth and age 1 year.
Regression models were run to detect the independent effects of various
maternal and infant factors on 1-year child adiposity, adjusting for their
effects at birth. RESULTS: LGA infants of GDM mothers had a higher BMI,
waist circumference, and abdominal skinfold at age 1 year compared with all
other study groups. Among infants of GDM mothers, the mean 2-h postprandial
glucose value for the second and third trimester correlated with waist
circumference (r = 0.28, P < 0.04) and subscapular skinfold (r = 0.37, P
< 0.007), and correlated marginally with 1-year sum of four skinfolds.
Among infants of GDM mothers, a regression of 1-year sum of four skinfolds
was significantly related to maternal prepregnancy weight after controlling
for sum of skinfolds at birth. For control infants, the maternal glucose
screen value was significantly associated with 1-year sum of skinfolds
adjusted for the birth sum of skinfolds. CONCLUSIONS: We concluded that
macrosomic infants of GDM mothers have unique patterns of adiposity that
are present at birth and persist at age 1 year. Further, we concluded that
maternal factors, including adiposity and intrauterine fuel environment,
influence the presence and distribution of adiposity for both infants of
GDM mothers and control infants.