Socioeconomic position and children's physical activity and sedentary behaviours: Longitudinal findings from the CLAN study
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Ball, K and Cleland, V and Timperio, A and Salmon, J and Crawford, D, Socioeconomic position and children's physical activity and sedentary behaviours: Longitudinal findings from the CLAN study, Journal of Physical Activity & Health , 6, (3) pp. 289-298. ISSN 1543-3080 (2009) [Refereed Article]
Background: This study aimed to examine cross-sectional and longitudinal associations between socioeconomic position (SEP) and physical activity and sedentary behaviors among children and adolescents. Methods: Maternal education was reported by parents of 184 children 5 to 6 years old and 358 children 10 to 12 years old in 2001. In 2001 and 2004, physical activity was assessed by accelerome-try. Older children self-reported and parents of younger children proxy-reported physical activity and TV-viewing behaviors. Linear regression was used to predict physical activity and sedentary behaviors, and changes in these behaviors, from maternal education. Results: Among all children, accelerometer-determined and self- or parent-reported moderate and vigorous physical activity declined over 3 years. Girls of higher SEP demonstrated greater decreases in TV-viewing behaviors than those of low SEP. In general, no prospective associations were evident between SEP and objectively assessed physical activity. A small number of prospective associations were noted between SEP and self-reported physical activity, but these were generally weak and inconsistent in direction. Conclusions: This study did not find strong evidence that maternal education was cross-sectionally or longitudinally predictive of children's physical activity or sedentary behaviors. Given the well-documented inverse relationship of SEP with physical activity levels in adult samples, the findings suggest that such disparities might emerge after adolescence. © 2009 Human Kinetics, Inc.
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