Parental physical and lifestyle factors and their association with newborn body composition

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Abstract

OBJECTIVE:
To investigate the parental physical and lifestyle determinants of newborn body composition.

DESIGN:
Prospective cohort study.

SETTING:
Cork University Maternity Hospital, a tertiary referral hospital in Cork, Ireland.

POPULATION:
All babies were recruited as part of a prospective birth cohort, Babies After

SCOPE:
Evaluating the Longitudinal Impact Using Neurological and Nutritional Endpoints (BASELINE). These babies were recruited from women who had participated in the Screening of Pregnancy Endpoints (SCOPE) study Ireland, a prospective, multicentre cohort study

METHODS:
Multivariate linear regression was used to analyse the effect of a range of maternal and paternal physical and lifestyle features on neonatal body fat percentage (BF%).

MAIN OUTCOME MEASURES:
Neonatal BF%. Neonatal adiposity was assessed within 48 hours of birth using air displacement plethysmography (PEAPOD(®) ).

RESULTS:
In all, 1243 infants were enrolled in the study. Increasing maternal body mass index (adjusted mean difference 0.09; 0.04, 0.15) and waist height ratio (adjusted mean difference 6.59; 0.27, 12.92) were significantly associated with increased neonatal BF%. In contrast, maternal smoking was associated with reduced neonatal BF% compared with non smokers (adjusted mean difference -0.55; -1.07, -0.03). Infant sex significantly altered neonatal BF%, with female infants having higher neonatal BF% compared with male infants (adjusted mean difference 1.98; 1.54, 2.53). No association was observed between paternal body mass index (BMI), paternal age or paternal smoking and neonatal BF%.

CONCLUSIONS:
Maternal smoking, BMI, waist height ratio and infant sex were associated with altered BF%.

TWEETABLE ABSTRACT:
Maternal smoking, BMI, waist height ratio and infant sex are associated with altered neonatal body fat percentage.

© 2016 Royal College of Obstetricians and Gynaecologists.
Original languageEnglish
Article numberDOI: 10.1111/1471-0528.14042
Pages (from-to)1824
JournalBJOG
Volume123
Issue number11
Publication statusPublished - Oct 2016

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