Title:
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Associations between parental height and cardiometabolic outcomes in the offspring : an intergenerational study in a birth cohort in Andhra Pradesh, India
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Parental influences on cardiovascular disease (CVD) risk in children can be
linked to their own earlier nutritional or socio-economic circumstances. We
examined the association of parental height, a sensitive proxy marker of early
life circumstances, with offspring cardiovascular disease risk in the Andhra
Pradesh Children and Parents Study (APCAPS) in Southern India.
We present data from subjects in 1129 households (N=4369) in 20 study
villages where we examined the association of parental height (Mothers
N=987, Fathers N=798) with CVD risk factors in children (N=2581, mean
age=22.3yrs, Males=58.9%) using multiple regression analyses, adjusting for
potential confounders and accounting for family-level clustering.
Maternal and paternal height were positively associated with offspring height
[β =0.302(0.274, 0.331) and 0.271(0.239, 0.302)], weight [β= 0.170(0.137, 0.203)
and 0.167(0.128, 0.205)],body mass index[β=0.034(-0.003,O.070) and 0.042(-
0.001,0.0084)], waist [P=0.066(0.033,O.099) and 0.068(0.033,O.105)]and
hip[β=0.140(0.105,O.176) and 0.152(0.109,O.194)]circumferences, total body fat
[β =0.102(0.062,0.142) and 0.082(0.043,O.122)]and fat-free
mass[β=0.152(0.122,O.181) and 0.173(0.140,0.206)]. Most of these effects were
attenuated or lost on accounting for child's current socio-economic status and
height. Maternal height showed a positive association, robust to adjustment,
with HOMA and diastolic blood pressure only among female offspring, while
paternal height was positively associated with offspring LDL-C and inversely
with systolic and diastolic blood pressure. There was no association with
other biochemical and vascular outcomes. Comparison of maternal versus
paternal height influences showed differences for offspring fasting insulin,
HOMA insulin resistance and diastolic blood pressure.
Taller maternal height leading to improved offspring birth outcomes and later
cardiovascular risk has been shown in Western populations. In our study,
increasing parental height was associated with increases, rather than
decreases in most offspring CVD risk factors, after accounting for potential
confounders and mediators. This points to the potential role of lifestyle factors
such as unhealthy diet and physical inactivity associated with increased
urbanization as putative causative factors in this phenomenon.
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