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|Title: ||The relationship between early life modifiable risk factors for childhood obesity, ethnicity and body mass index at age 3 years: findings from the Born in Bradford birth cohort study|
|Authors: ||Fairley, Lesley|
Lawlor, Debbie A.
Petherick, Emily S.
Greenwood, Darren C.
Hill, Andrew J.
Barber, Sally E.
|Keywords: ||Body mass index|
Early childhood risk factors
Born in Bradford
|Issue Date: ||2015|
|Publisher: ||BioMed Central / © The Authors|
|Citation: ||FAIRLEY, L. ... et al, 2015. The relationship between early life modifiable risk factors for childhood obesity, ethnicity and body mass index at age 3 years: findings from the Born in Bradford birth cohort study. BMC Obesity, 2 (1), pp. 1-12.|
|Abstract: ||Background: Many modifiable risk factors in early infancy have been shown to be associated with childhood
overweight and obesity. These risk factors have not been studied within children of South Asian origin in the UK.
The aims of this paper are to describe differences in the prevalence of modifiable risk factors for childhood obesity
between children of White British and Pakistani origin and investigate the association between these risk factors
and childhood BMI measured at age 3 years. We used data from a sub-study of the Born in Bradford birth cohort
with detailed follow-up visits throughout early childhood. 987 participants with a BMI measurement at age 3 were
included; 39% were White British, 48% were of Pakistani origin and 13% were of other ethnicities. Linear and Poisson
regression models were used to assess the association between risk factors and two outcomes at age 3; BMI z-scores
and child overweight.
Results: Compared to Pakistani mothers, White British mothers were more likely to smoke during pregnancy, have
higher BMI, breastfeed for a shorter duration and wean earlier, while Pakistani mothers had higher rates of gestational
diabetes and were less active. There was no strong evidence that the relationship between risk factors and BMI z-score
differed by ethnicity. There were associations between BMI z-score and maternal smoking (mean difference in
BMI z-score 0.33 (95% CI 0.13, 0.53)), maternal obesity (0.37 (0.19, 0.55)), indulgent feeding style (0.15 (−0.06,
0.36)), lower parental warmth scores (0.21 (0.05, 0.36)) and higher parental hostility scores (0.17 (0.01, 0.33)).
Consistent associations between these risk factors and child overweight were found. Mean BMI and the relative risk
of being overweight were lower in children of mothers with lower parental self-efficacy scores and who watched more
hours of TV. Other risk factors (gestational diabetes, child diet, child sleep, child TV viewing and maternal physical
activity) were not associated with BMI. Conclusions: Whilst the prevalence of risk factors that have been associated with childhood greater BMI differ
between White British and Pakistani the magnitude of their associations with BMI are similar in the two groups.|
|Description: ||This is an Open Access article published by Biomed Central and distributed under the terms of the Creative
Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is properly credited|
|Sponsor: ||This paper presents independent research commissioned by the National
Institute for Health Research (NIHR) under its Programme Grants for Applied
Research Programme (Grant Reference Number RP-PG-0407-10044). DAL
works in a unit that receives funding from the UK Medical Research Council
and the University of Bristol.|
|Publisher Link: ||http://dx.doi.org/10.1186/s40608-015-0037-5|
|Appears in Collections:||Published Articles (Sport, Exercise and Health Sciences)|
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