期刊
INTERNATIONAL JOURNAL OF OBESITY
卷 35, 期 1, 页码 46-52出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ijo.2010.189
关键词
childhood obesity; parental BMI; maternal BMI; paternal BMI; age at onset of obesity; severity of obesity
资金
- Swedish Association of Local Authorities and Regions
- Swedish National Board of Health and Welfare, AFA Insurance
- Swedish Council for Working Life and Social Research
Objective: To explore the relationship between severity of obesity at age 7 and age 15, age at onset of obesity, and parental body mass index (BMI) in obese children and adolescents. Design: Longitudinal cohort study. Subjects: Obese children (n = 231) and their parents (n = 462) from the Swedish National Childhood Obesity Centre. Methods: Multivariate regression analyses were applied with severity of obesity (BMI standard deviation score (BMI SDS)) and onset of obesity as dependent variables. The effect of parental BMI was evaluated and in the final models adjusted for gender, parental education, age at onset of obesity, severity of obesity at age 7 and obesity treatment. Results: For severity of obesity at age 7, a positive correlation with maternal BMI was indicated (P = 0.05). Severity of obesity at this age also showed a strong negative correlation with the age at onset of obesity. Severity of obesity at age 15 was significantly correlated with both maternal and paternal BMI (P<0.01). In addition, BMI SDS at age 15 differed by gender (higher for boys) and was positively correlated with severity of obesity at age 7 and negatively correlated with treatment. Also, a negative correlation was indicated at this age for parental education. No correlation with age at onset was found at age 15. For age at onset of obesity there was no relevant correlation with parental BMI. Children within the highest tertile of the BMI SDS range were more likely to have two obese parents. Conclusion: The impact of parental BMI on the severity of obesity in children is strengthened as the child grows into adolescence, whereas the age at onset is probably of less importance than previously thought. The influence of parental relative weight primarily affects the severity of childhood obesity and not the timing. International Journal of Obesity (2011) 35, 46-52; doi:10.1038/ijo.2010.189; published online 21 September 2010
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