Abstract
ObjectiveChildhood obesity is rising and dietary intake is a potentially modifiable factor that plays an important role in its development. We aim to investigate the association between dietary patterns, obtained through principal components analysis and gains in fat and lean mass in childhood.DesignDiet diaries at 10 years of age collected from children taking part in the Avon Longitudinal Study of Parents and Children. Body composition was assessed using dual-energy X-ray absorptiometry at 9 and 11.SettingLongitudinal birth cohort.Subjects3911 children with complete data.ResultsThere was an association between the Health Aware (positive loadings on high-fiber bread, and fruits and vegetables; negative loadings on chips, crisps, processed meat, and soft drinks) pattern score and decreased fat mass gain in girls. After adjusting for confounders, an increase of 1 standard deviation (sd) in this score led to an estimated 1.2% decrease in fat mass gain in valid-reporters and 2.1% in under-reporters. A similar decrease was found only in under-reporting boys. There was also an association between the Packed Lunch (high consumption of white bread, sandwich fillings, and snacks) pattern score and decreased fat mass gain (1.1% per sd) in valid-reporting but not under-reporting girls. The main association with lean mass gain was an increase with Packed Lunch pattern score in valid-reporting boys only.ConclusionsThere is a small association between dietary patterns and change in fat mass in mid-childhood. Differences between under- and valid-reporters emphasize the need to consider valid-reporters separately in such studies.
Highlights
The purpose of this study is to investigate the association between dietary patterns, obtained through Principal components analysis (PCA) of diet diary data from children aged 10, and gains in fat and lean mass between ages 9 and 11
In the model that only adjusted for height (Model 0), there was evidence among valid-reporters (Table 3) for an association between the Health Aware pattern and decreased fat mass gain in girls: an increase of 1 sd in Health Aware score gave an estimated 2.0% decrease in fat mass gain
There was evidence for a small association between the Packed Lunch pattern and increased lean mass in valid-reporters: an increase of 1 sd in Packed Lunch score gave an estimated 0.2% increase in lean mass gain
Summary
The purpose of this study is to investigate the association between dietary patterns, obtained through PCA of diet diary data from children aged 10, and gains in fat and lean mass between ages 9 and 11. There was strong evidence (all PB0.001) that underreporters were on average heavier at birth, were less physically active, and had lower educated mothers with greater BMIs. Tables 3 and 4 show the estimated coefficients of the linear regression models for the effect of dietary patterns on differences in fat and lean mass stratified by gender, for valid- and under-reporters, respectively.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call