OBJECTIVE - To investigate lipid levels in former gestational diabetic
mothers, 5-6 years postpartum, and to evaluate the relationship of th
ese Values to glucose, insulin, BMI, and blood pressure. RESEARCH DESI
GN AND METHODS - The subjects studied were 56 former gestational diabe
tic mothers and 48 control mothers 5-6 years postpartum. Two hours aft
er a 50-g carbohydrate meal, total cholesterol (TC), triglycerides (TG
), HDL and LDL cholesterol, glucose, and insulin were measured and com
pared between the two groups (analysis of variance). BMI and blood pre
ssure were also evaluated. The risk of finding an abnormal metabolic,
anthropometric, or hemodynamic parameter in either group was assessed
(chi(2) analysis and Fisher's exact test). Correlation coefficients we
re assessed between the lipids versus insulin, glucose, BMI, and blood
pressure. RESULTS - Mean TC, TG, LDL cholesterol, glucose, and systol
ic blood pressure were significantly higher in the gestational diabeti
c mothers than in the control mothers. In addition, there was greater
likelihood of finding an abnormal TC greater than or equal to 5.17 mmo
l/l, LDL cholesterol greater than or equal to 4.14 mmol/l, and systoli
c blood pressure > 140 mmHg in gestational diabetic mothers. Triglycer
ides correlated with BMI, insulin, systolic and diastolic blood pressu
re, and HDL cholesterol correlated inversely with insulin in gestation
al diabetic mothers CONCLUSIONS - We conclude that at 5-6 years postpa
rtum, former gestational diabetic mothers demonstrate changes in lipid
levels that differ from control mothers and that specific lipids corr
elate with cardiovascular risk factors. Further study is needed to eva
luate gestational diabetic mothers for the development of cardiovascul
ar risk factors including insulin resistance.