Understanding How Much TV is Too Much: A Nonlinear Analysis of the Association Between Television Viewing Time and Adverse Health Outcomes

To inform potential guideline development, we investigated nonlinear associations between television viewing time (TV time) and adverse health outcomes. From 2006 to 2010, 490,966 UK Biobank participants, aged 37 to 73 years, were recruited. They were followed from 2006 to 2018. Nonlinear associatio...

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Veröffentlicht in:Mayo Clinic proceedings 2020-11, Vol.95 (11), p.2429-2441
Hauptverfasser: Foster, Hamish M E, Ho, Frederick K, Sattar, Naveed, Welsh, Paul, Pell, Jill P, Gill, Jason M R, Gray, Stuart R, Celis-Morales, Carlos A
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Sprache:eng
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Zusammenfassung:To inform potential guideline development, we investigated nonlinear associations between television viewing time (TV time) and adverse health outcomes. From 2006 to 2010, 490,966 UK Biobank participants, aged 37 to 73 years, were recruited. They were followed from 2006 to 2018. Nonlinear associations between self-reported TV time (hours per day) and outcomes explored using penalized cubic splines in Cox proportional hazards adjusted for demographics and lifestyle. Population-attributable and potential impact fractions were calculated to contextualize population-level health outcomes associated with different TV time levels. Nonlinear isotemporal substitution analyses were used to investigate substituting TV time with alternative activities. Primary outcomes were mortality: all-cause, cardiovascular disease (CVD) and cancer; incidence: CVD and cancer; secondary outcomes were incident myocardial infarction, stroke, and heart failure and colon, lung, breast, and prostate cancer. Those with noncommunicable disease (109,867 [22.4%]), CVD (32,243 [6.6%]), and cancer (37,81 [7.7%]) at baseline were excluded from all-cause mortality, CVD, and cancer analyses, respectively. After 7.0 years (mortality) and 6.2 years (disease incidence) mean follow-up, there were 10,306 (2.7%) deaths, 24,388 (5.3%) CVD events, and 39,121 (8.7%) cancer events. Associations between TV time and all-cause and CVD mortality were curvilinear (P ≤.003), with lowest risk observed
ISSN:0025-6196
1942-5546
DOI:10.1016/j.mayocp.2020.04.035