Television viewing time and all-cause mortality: interactions with BMI, physical activity, smoking, and dietary factors Swain, CTV, Bassett, JK, Hodge, AM, Dunstan, David, Owen, N, Yang, Y, Jayasekara, H, Hébert, JR, Shivappa, N, MacInnis, RJ, Milne, RL, English, DR and Lynch, BM 2022, Television viewing time and all-cause mortality: interactions with BMI, physical activity, smoking, and dietary factors, International Journal of Behavioral Nutrition and Physical Activity, vol. 19, no. 1, pp. 30, doi: 10.1186/s12966-022-01273-5. Attached Files Name Description MIMEType Size Downloads Title Television viewing time and all-cause mortality: interactions with BMI, physical activity, smoking, and dietary factors Author(s) Swain, CTV Bassett, JK Hodge, AM Dunstan, David orcid.org/0000-0003-2629-9568 Owen, N Yang, Y Jayasekara, H Hébert, JR Shivappa, N MacInnis, RJ Milne, RL English, DR Lynch, BM Journal name International Journal of Behavioral Nutrition and Physical Activity Volume number 19 Issue number 1 Article ID 30 Start page 30 Publisher Springer Science and Business Media LLC Place of publication England Publication date 2022-12-01 ISSN 1479-5868 1479-5868 Keyword(s) Prospective study Sedentary behavior Survival analysis Summary Abstract Background Higher levels of time spent sitting (sedentary behavior) contribute to adverse health outcomes, including earlier death. This effect may be modified by other lifestyle factors. We examined the association of television viewing (TV), a common leisure-time sedentary behavior, with all-cause mortality, and whether this is modified by body mass index (BMI), physical activity, smoking, alcohol intake, soft drink consumption, or diet-associated inflammation. Methods Using data from participants in the Melbourne Collaborative Cohort Study, flexible parametric survival models assessed the time-dependent association of self-reported TV time (three categories: < 2 h/day, 2–3 h/day, > 3 h/day) with all-cause mortality. Interaction terms were fitted to test whether there was effect modification of TV time by the other risk factors. Results From 19,570 participants, 4,417 deaths were reported over a median follow up of 14.5 years. More TV time was associated with earlier mortality; however, this relationship diminished with increasing age. The hazard ratio (HR) and 95% confidence interval (95% CI) for > 3 h/day compared with < 2 h/day of TV time was 1.34 (1.16, 1.55) at 70 years, 1.14 (1.04, 1.23) at 80 years, and 0.95 (0.84, 1.06) at 90 years. The TV time/mortality relationship was more evident in participants who were physically inactive (compared with active; p for interaction < 0.01) or had a higher dietary inflammatory index score (compared with a lower score; p for interaction = 0.03). No interactions were detected between TV time and BMI, smoking, alcohol intake, nor soft-drink consumption (all p for interaction > 0.16). Conclusions The relationship between TV time and all-cause mortality may change with age. It may also be more pronounced in those who are otherwise inactive or who have a pro-inflammatory diet. DOI 10.1186/s12966-022-01273-5 Indigenous content off Field of Research 11 Medical and Health Sciences 13 Education Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30166558 Document type: Journal Article Collections: Faculty of Health School of Exercise and Nutrition Sciences Open Access Collection Related Links Link Description Link to full-text (open access)   Connect to published version Go to link with your DU access privileges   Author URL Go to link with your DU access privileges   Connect to Elements publication management system Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Fri, 08 Apr 2022, 08:30:06 EST Mon, 11 Apr 2022, 15:46:22 EST Thu, 28 Apr 2022, 06:04:17 EST Sun, 01 May 2022, 17:33:47 EST Mon, 02 May 2022, 14:05:52 EST Thu, 05 May 2022, 23:37:03 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 17 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Fri, 08 Apr 2022, 08:30:06 EST