Obesigenic families: parents' physical activity and dietary intake patterns predict girls' risk of overweight.
OBJECTIVE
To determine whether obesigenic families can be identified based on mothers' and fathers' dietary and activity patterns.


METHODS
A total of 197 girls and their parents were assessed when girls were 5 y old; 192 families were reassessed when girls were 7 y old. Measures of parents' physical activity and dietary intake were obtained and entered into a cluster analysis to assess whether distinct family clusters could be identified. Girls' skinfold thickness and body mass index (BMI) were also assessed and were used to examine the predictive validity of the clusters.


RESULTS
Obesigenic and a non-obesigenic family clusters were identified. Mothers and fathers in the obesigenic cluster reported high levels of dietary intake and low levels of physical activity, while mothers and fathers in the non-obesigenic cluster reported low levels of dietary intake and high levels of activity. Girls from families in the obesigenic cluster had significantly higher BMI and skinfold thickness values at age 7 and showed significantly greater increases in BMI and skinfold thickness from ages 5 to 7 y than girls from non-obesigenic families; differences were reduced but not eliminated after controlling for parents' BMI.


CONCLUSIONS
Obesigenic families, defined in terms of parents' activity and dietary patterns, can be used predict children's risk of obesity.
Davison
K Krahnstoever
KK
Department of Human Development and Family Studies, The Pennsylvania State University, University Park 16802, USA. kdavison@psu.edu
Birch
L Lipps
LL
D000328:Adult; D000704:Analysis of Variance; D015992:Body Mass Index; D002648:Child; D002675:Child, Preschool; D016000:Cluster Analysis; D004032:Diet; D005247:Feeding Behavior / Q000502:physiology*; D005260:Female; D005544:Forecasting; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D009765:Obesity / Q000209:etiology*; D010290:Parents; D012306:Risk; D012885:Skinfold Thickness