• Cally A Davies, Corneel Vandelanotte, Mitch J Duncan, and Jannique G Z van Uffelen.
• Centre for Physical Activity Studies, Institute for Health and Social Science Research, CQUniversity Australia, Rockhampton, Queensland, Australia. cally1@ualberta.ca
• Prev Med. 2012 Jul 1; 55 (1): 46-9.

BackgroundAssociations between the combined effect of physical activity and screen based activities on health related quality of life remain largely undetermined.MethodsDuring 2008-2010, cross-sectional data for self-reported health related quality of life, physical activity, and screen-time were collected for 3796 Australian adults. Logistic regression was conducted to examine associations for six combinations of physical activity (none, insufficient, and sufficient), and screen-time (low and high) on health related quality of life.ResultsIn comparison to the reference category (sufficient physical activity and low screen-time) men and women who reported no physical activity and either high (OR=4.52, 95% CI 2.82-7.25) or low (OR=2.29, 95% CI 1.37-3.80) screen-time, were significantly more likely to report over 14 unhealthy days. Men reporting either; no physical activity and high (OR=3.15, 95% CI 1.92-5.15), or low (OR=2.17, 95% CI 1.30-3.63) screen-time; insufficient physical activity and high (OR=1.68, 95% CI 1.08-2.60), or low (OR=1.79, 95% CI 1.14-2.82) screen-time were more likely to rate their health as poor or fair. In women this was significant for those who reported no physical activity and high screen-time (OR=1.98, 95% CI, 1.19-3.31).ConclusionsResults suggest that the combination of no physical activity and high screen-time demonstrated the greatest negative impact on health related quality of life.Copyright © 2012 Elsevier Inc. All rights reserved.

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