Changes in body mass index and health related quality of life from childhood to adolescence

Williams, Joanne W., Canterford, Louise, Hesketh, Kylie D., Hardy, Pollyanna, Waters, Elizabeth B., Patton, George C. and Wake, Melissa 2011, Changes in body mass index and health related quality of life from childhood to adolescence, International journal of pediatric obesity, vol. 6, no. 2-2, pp. 442-448, doi: 10.3109/17477166.2010.526226.

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Title Changes in body mass index and health related quality of life from childhood to adolescence
Author(s) Williams, Joanne W.ORCID iD for Williams, Joanne W.
Canterford, Louise
Hesketh, Kylie D.ORCID iD for Hesketh, Kylie D.
Hardy, Pollyanna
Waters, Elizabeth B.
Patton, George C.
Wake, Melissa
Journal name International journal of pediatric obesity
Volume number 6
Issue number 2-2
Start page 442
End page 448
Total pages 7
Publisher Wiley-Blackwell Publishing Ltd
Place of publication Oxford, England
Publication date 2011-06
ISSN 1747-7166
Keyword(s) adolescent
health-related quality of life
longitudinal studies
Summary Objective . To determine longitudinal relationships between body mass index (BMI) and health-related quality of life (HRQoL) in an adolescent population sample.
Design. Data collected in 2000 and 2005 within the Health of Young Victorians longitudinal cohort study.
Setting. Originally a community sample of elementary school students in Victoria, Australia. Follow-up occurred in either secondary schools or individuals homes.
Participants. Cohort recruited in 1997 via a random sampling design from Victorian elementary schools. Originally comprising 1 943 children, 1 569 (80.8%) participated in 2000 (wave 2, 8 – 13 years) and 851 (54%) in 2005 (wave 3, 13 – 19 years).
Main outcome measures. In both waves participants and their parents completed the PedsQL, a 23-item child HRQoL measure, and BMI z-scores and status (non-overweight, overweight or obese) were calculated from measured height and weight. Associations were tested cross-sectionally and longitudinally (linear regression, adjusted for baseline values)
Results. A total of 81.6% remained in the same BMI category, while 11.4% and 7.0% moved to higher and lower categories, respectively. Cross-sectional inverse associations between lower PedsQL and higher BMI categories were similar to those for elementary school children. Wave 2 BMI strongly predicted wave 3 BMI and wave 2 PedsQL strongly predicted wave 3 PedsQL. Only parent-reported Total PedsQL score predicted higher subsequent BMI, though this effect was small. Wave 2 BMI did not predict wave 3 PedsQL.
Conclusions. This novel study confi rmed previous cross-sectional associations, but did not provide convincing evidence that
BMI is causally associated with falling HRQoL or vice versa across the transition from childhood to adolescence.
Language eng
DOI 10.3109/17477166.2010.526226
Field of Research 111706 Epidemiology
Socio Economic Objective 920408 Health Status (e.g. Indicators of Well-Being)
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Informa Healthcare
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