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- Title
The Trajectory and the Related Physical and Social Determinants of Body Mass Index in Elementary School Children: Results from the Child and Adolescent Behaviors in Long-Term Evolution Study.
- Authors
Li-Ju Lin; Hsing-Yi Chang; Dih-Ling Luh; Baai-Shyun Hurng; Lee-Lan Yen
- Abstract
This study explored developmental trajectory patterns of BMI and associated factors. Participants included 1,609 students who were followed from age 7 to 12 years. Data collection involved annual self-administered questionnaires and records of height and weight. An ecological model was used to identify the factors associated with BMI trajectories. Group-based trajectory models and multinomial logit models were used in the statistical analysis. There were gender differences in BMI trajectories. Among boys, four BMI trajectories were normal or slightly underweight, persistently normal weight, overweight becoming obese, and persistently obese. Among girls, four BMI trajectories were persistently slightly underweight, persistently normal weight, persistently overweight, and persistently obese. The mean BMI in each trajectory group demonstrated an upward trend over time. In boys, BMI trajectories were significantly associated with after-school exercise, academic performance, family interactions, overweight parents, and father's education level. In girls, BMI trajectories were significantly associated with television viewing or computer use, family interactions, peer interactions, and overweight parents.Children under age 7 yearswho are already overweight or obese are an important target for interventions. The different factors associated with BMI trajectories can be used for targeting high risk groups.
- Subjects
TAIWAN; RISK of childhood obesity; ANTHROPOMETRY; CHI-squared test; CHILD development; HEALTH behavior; LONGITUDINAL method; MATHEMATICAL models; PROBABILITY theory; QUESTIONNAIRES; SCHOOL children; THEORY; SOCIOECONOMIC factors; BODY mass index; HEALTH &; social status
- Publication
Journal of Obesity, 2014, Vol 2014, p1
- ISSN
2090-0708
- Publication type
Article
- DOI
10.1155/2014/728762