Combined television viewing and computer use and mortality from all-causes and diseases of the circulatory system among adults in the United States
Tóm tắt
Watching television and using a computer are increasingly common sedentary behaviors. Whether or not prolonged screen time increases the risk for mortality remains uncertain. Mortality for 7,350 adults aged ≥ 20 years who participated in the National Health and Nutrition Examination Survey during 1999-2002 and were followed through 2006 was examined. Participants were asked a single question about the amount of time they spent watching television or videos or using a computer during the past 30 days. During a median follow-up of 5.8 years, 542 participants died. At baseline, 12.7% of participants reported watching television or using a computer less than 1 h per day, 16.4% did so for 1 h, 27.8% for 2 h, 18.7% for 3 h, 10.9% for 4 h, and 13.5% for 5 or more h. After extensive adjustment, the hazard ratio for all-cause mortality for the top category of exposure was 1.30 (95% confidence interval: 0.82, 2.05). No significant trend across categories of exposure was noted. The amount of screen time was also not significantly related to mortality from diseases of the circulatory system. In the present study, screen time did not significantly predict mortality from all-causes and diseases of the circulatory system.
Tài liệu tham khảo
Nielsen: Three Screen Report. [http://blog.nielsen.com/nielsenwire/online_mobile/what-consumers-watch-nielsens-q1-2010-three-screen-report/]
U.S.Bureau of Labor Statistics: American Time Use Survey Summary. [http://www.bls.gov/news.release/atus.nr0.htm]
Hu FB, Leitzmann MF, Stampfer MJ, Colditz GA, Willett WC, Rimm EB: Physical activity and television watching in relation to risk for type 2 diabetes mellitus in men. Arch Intern Med. 2001, 161: 1542-1548. 10.1001/archinte.161.12.1542.
Hu FB, Li TY, Colditz GA, Willett WC, Manson JE: Television watching and other sedentary behaviors in relation to risk of obesity and type 2 diabetes mellitus in women. JAMA. 2003, 289: 1785-1791. 10.1001/jama.289.14.1785.
Dunstan DW, Salmon J, Owen N, Armstrong T, Zimmet PZ, Welborn TA, Cameron AJ, Dwyer T, Jolley D, Shaw JE: Physical activity and television viewing in relation to risk of undiagnosed abnormal glucose metabolism in adults. Diabetes Care. 2004, 27: 2603-2609. 10.2337/diacare.27.11.2603.
Dunstan DW, Salmon J, Owen N, Armstrong T, Zimmet PZ, Welborn TA, Cameron AJ, Dwyer T, Jolley D, Shaw JE: Associations of TV viewing and physical activity with the metabolic syndrome in Australian adults. Diabetologia. 2005, 48: 2254-2261. 10.1007/s00125-005-1963-4.
Ford ES, Kohl HW, Mokdad AH, Ajani UA: Sedentary behavior, physical activity, and the metabolic syndrome among U.S. adults. Obes Res. 2005, 13: 608-614. 10.1038/oby.2005.65.
Dunstan DW, Salmon J, Healy GN, Shaw JE, Jolley D, Zimmet PZ, Owen N: Association of television viewing with fasting and 2-h postchallenge plasma glucose levels in adults without diagnosed diabetes. Diabetes Care. 2007, 30: 516-522. 10.2337/dc06-1996.
Healy GN, Dunstan DW, Salmon J, Shaw JE, Zimmet PZ, Owen N: Television time and continuous metabolic risk in physically active adults. Med Sci Sports Exerc. 2008, 40: 639-645. 10.1249/MSS.0b013e3181607421.
Ford ES, Schulze MB, Kroger J, Pischon T, Bergmann MM, Boeing H: Television watching and incident diabetes: Findings from the European Prospective Investigation into Cancer and Nutrition-Potsdam Study. J Diabetes. 2010, 2: 23-27. 10.1111/j.1753-0407.2009.00047.x.
Ford ES, Li C, Zhao G, Pearson WS, Tsai J, Churilla JR: Sedentary behavior, physical activity, and concentrations of insulin among US adults. Metabolism. 2010, 59: 1268-1275. 10.1016/j.metabol.2009.11.020.
U.S.Department of Health and Human Services: Healthy People 2020 Objective Topic Areas and Page Numbers. [http://www.healthypeople.gov/2020/topicsobjectives2020/pdfs/HP2020objectives.pdf]
Dunstan DW, Barr EL, Healy GN, Salmon J, Shaw JE, Balkau B, Magliano DJ, Cameron AJ, Zimmet PZ, Owen N: Television viewing time and mortality: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab). Circulation. 2010, 121: 384-391. 10.1161/CIRCULATIONAHA.109.894824.
Warren TY, Barry V, Hooker SP, Sui X, Church TS, Blair SN: Sedentary behaviors increase risk of cardiovascular disease mortality in men. Med Sci Sports Exerc. 2010, 42: 879-885. 10.1249/MSS.0b013e3181c3aa7e.
Stamatakis E, Hamer M, Dunstan DW: Screen-based entertainment time, all-cause mortality, and cardiovascular events: population-based study with ongoing mortality and hospital events follow-up. J Am Coll Cardiol. 2011, 57: 292-299. 10.1016/j.jacc.2010.05.065.
Wijndaele K, Brage S, Besson H, Khaw KT, Sharp SJ, Luben R, Wareham NJ, Ekelund U: Television viewing time independently predicts all-cause and cardiovascular mortality: the EPIC Norfolk Study. Int J Epidemiol. 2011, 40: 150-159. 10.1093/ije/dyq105.
Centers for Disease Control and Prevention: About the National Health and Nutrition Examination Survey. [http://www.cdc.gov/nchs/nhanes/about_nhanes.htm]
Centers for Disease Control and Prevention: NHANES (1999-2004) Linked Mortality Files. [http://www.cdc.gov/nchs/data_access/data_linkage/mortality/nhanes_99_04_linkage.htm]
Stampfer MJ, Willett WC, Speizer FE, Dysert DC, Lipnick R, Rosner B, Hennekens CH: Test of the National Death Index. Am J Epidemiol. 1984, 119: 837-839.
Edlavitch SA, Baxter J: Comparability of mortality follow-up before and after the National Death Index. Am J Epidemiol. 1988, 127: 1164-1178.
Calle EE, Terrell DD: Utility of the National Death Index for ascertainment of mortality among cancer prevention study II participants. Am J Epidemiol. 1993, 137: 235-241.
Kennedy ET, Ohls J, Carlson S, Fleming K: The Healthy Eating Index: design and applications. J Am Diet Assoc. 1995, 95: 1103-1108. 10.1016/S0002-8223(95)00300-2.
Grontved A, Hu FB: Television viewing and risk of type 2 diabetes, cardiovascular disease, and all-cause mortality: a meta-analysis. JAMA. 2011, 305: 2448-2455. 10.1001/jama.2011.812.
Inoue M, Iso H, Yamamoto S, Kurahashi N, Iwasaki M, Sasazuki S, Tsugane S: Daily total physical activity level and premature death in men and women: results from a large-scale population-based cohort study in Japan (JPHC study). Ann Epidemiol. 2008, 18: 522-530. 10.1016/j.annepidem.2008.03.008.
Katzmarzyk PT, Church TS, Craig CL, Bouchard C: Sitting time and mortality from all causes, cardiovascular disease, and cancer. Med Sci Sports Exerc. 2009, 41: 998-1005. 10.1249/MSS.0b013e3181930355.
Patel AV, Bernstein L, Deka A, Feigelson HS, Campbell PT, Gapstur SM, Colditz GA, Thun MJ: Leisure time spent sitting in relation to total mortality in a prospective cohort of US adults. Am J Epidemiol. 2010, 172: 419-429. 10.1093/aje/kwq155.
Clark BK, Sugiyama T, Healy GN, Salmon J, Dunstan DW, Owen N: Validity and reliability of measures of television viewing time and other non-occupational sedentary behaviour of adults: a review. Obes Rev. 2009, 10: 7-16. 10.1111/j.1467-789X.2008.00508.x.
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