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Title: Maternal adiposity and blood pressure in pregnancy: Varying relations by ethnicity and gestational diabetes
Authors: Lim, W.-Y.
Kwek, K.
Chong, Y.-S.
Lee, Y.-S.
Yap, F.
Chan, Y.-H.
Godfrey, K.M.
Gluckman, P.D.
Saw, S.-M. 
Pan, A.
Keywords: Central blood pressure
Gestational diabetes
Peripheral blood pressure
Issue Date: Apr-2014
Citation: Lim, W.-Y., Kwek, K., Chong, Y.-S., Lee, Y.-S., Yap, F., Chan, Y.-H., Godfrey, K.M., Gluckman, P.D., Saw, S.-M., Pan, A. (2014-04). Maternal adiposity and blood pressure in pregnancy: Varying relations by ethnicity and gestational diabetes. Journal of Hypertension 32 (4) : 857-864. ScholarBank@NUS Repository.
Abstract: OBJECTIVE:: Greater maternal adiposity is a potentially modifiable risk factor for elevated blood pressure during pregnancy; however, the association has been little studied in Asian populations, and no study has evaluated potential differences in the adiposity-blood pressure relation between ethnic groups or interaction with gestational diabetes. METHODS:: We performed a cross-sectional evaluation of a Singapore mother-offspring cohort comprising 799 pregnant Chinese, Malay and Indian women. Data on body weight, height, skinfold thickness and glycaemia (oral glucose tolerance test) were collected during the 2nd trimester; peripheral SBP and DBP were measured using an oscillometric device and central pressures by noninvasive radial applanation tonometry. The associations between adiposity measures BMI and sum of skinfold thickness and blood pressure outcomes were examined by linear regression with adjustment for potential confounders. RESULTS:: Higher maternal BMI was associated with elevated peripheral and central pressures: the increases in pressure (mmHg) for each kg/m increase in BMI were 1.19 (95% confidence interval, 1.03-1.36) for peripheral SBP, 0.76 (0.63-0.89) for peripheral DBP, 1.02 (0.87-1.17) for central systolic pressure and 0.26 (0.16-0.37) for central pulse pressure. The associations were generally stronger in Chinese women (P-interaction=0.03 for central pulse pressure) and individuals with gestational diabetes (P-interaction=0.03 for DBP and P-interaction=0.046 for central systolic pressure). Similar patterns of results were found when using skinfold thickness as the measure of adiposity. CONCLUSION:: Maternal adiposity is associated with higher peripheral and central blood pressures during pregnancy. Stronger associations in Chinese women and individuals with gestational diabetes warrant further investigation. Copyright © Lippincott Williams & Wilkins.
Source Title: Journal of Hypertension
ISSN: 14735598
DOI: 10.1097/HJH.0000000000000096
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