The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.
Television Viewing and Time Spent Sedentary in Relation to Cancer Risk: A Meta-Analysis
Abstract
BACKGROUND: Sedentary behavior is emerging as an independent risk factor for chronic disease and mortality. However, the evidence relating television (TV) viewing and other sedentary behaviors to cancer risk has not been quantitatively summarized. METHODS: We performed a comprehensive electronic literature search in Cochrane, EMBASE, Medline, and SciSearch databases through February 2014 for published articles investigating sedentary behavior in relation to cancer incidence. Because randomized controlled trials are difficult to perform on this topic, we focused on observational studies that met uniform inclusion criteria. Data were extracted independently by both authors and summarized using random-effects meta-analysis and meta-regression. All statistical tests were two-sided. RESULTS: Data from 43 observational studies including a total of 68936 cancer cases were analyzed. Comparing the highest vs lowest levels of sedentary time, the relative risks (RRs) for colon cancer were 1.54 (95% confidence interval [CI] = 1.19 to 1.98) for TV viewing time, 1.24 (95% CI = 1.09 to 1.41) for occupational sitting time, and 1.24 (95% CI = 1.03 to 1.50) for total sitting time. For endometrial cancer, the relative risks were 1.66 (95% CI = 1.21 to 2.28) for TV viewing time and 1.32 (95% CI = 1.08 to 1.61) for total sitting time. A positive association with overall sedentary behavior was also noted for lung cancer (RR = 1.21; 95% CI = 1.03 to 1.43). Sedentary behavior was unrelated to cancers of the breast, rectum, ovaries, prostate, stomach, esophagus, testes, renal cell, and non-Hodgkin lymphoma. CONCLUSIONS: Prolonged TV viewing and time spent in other sedentary pursuits is associated with increased risks of certain types of cancer.
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Conducting Meta-Analyses in R with the metafor Package
Viechtbauer, W. (2010) · Journal of Statistical Software · doi:10.18637/jss.v036.i03 · Cited by 20,464
Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement
Moher, D., Liberati, A., Tetzlaff, J., & Altman, D. G. (2009) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2009.06.005 · Cited by 19,575
Operating characteristics of a rank correlation test for publication bias
Begg, C. B., & Mazumdar, M. (1994) · Biometrics · doi:10.2307/2533446 · Cited by 16,955
Garber, C. E., Blissmer, B., Deschenes, M. R., Franklin, B. A., Lamonte, M. J., Lee, I.-M., Nieman, D. C., & Swain, D. P. (2011) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0b013e318213fefb · Cited by 9,319 · cited 1×
“The American College of Sports Medicine advocates reducing sedentariness for all adults and interspersing intervals of standing and short bouts of physical activity between periods of time spent sedentary, regardless of an individual’s physical activity level (91).”
BackgroundRenehan, A. G., Tyson, M., Egger, M., Heller, R. F., & Zwahlen, M. (2008) · The Lancet · doi:10.1016/s0140-6736(08)60269-x · Cited by 5,219
Overweight, obesity and cancer: epidemiological evidence and proposed mechanisms
Calle, E. E., & Kaaks, R. (2004) · Nature reviews. Cancer · doi:10.1038/nrc1408 · Cited by 3,613
Decreased bioavailability of vitamin D in obesity
Wortsman, J., Matsuoka, L. Y., Chen, T. C., Lu, Z., & Holick, M. F. (2000) · The American Journal of Clinical Nutrition · doi:10.1093/ajcn/72.3.690 · Cited by 3,204
Kushi, L. H., Byers, T., Doyle, C., Bandera, E. V., McCullough, M., Gansler, T., Andrews, K. S., Thun, M. J., & The American Cancer Society 2006 Nutrition and Physical Activity Guidelines Advisory Committee (2006) · CA A Cancer Journal for Clinicians · doi:10.3322/canjclin.56.5.254 · Cited by 1,901
Hu, F. B., Li, T. Y., Colditz, G. A., Willett, W. C., & Manson, J. E. (2003) · JAMA · doi:10.1001/jama.289.14.1785 · Cited by 1,892
Wilmot, E. G., Edwardson, C. L., Achana, F. A., Davies, M. J., Gorely, T., Gray, L. J., Khunti, K., Yates, T., & Biddle, S. J. H. (2012) · Diabetologia · doi:10.1007/s00125-012-2677-z · Cited by 1,789
Cited by
Biswas, A., Oh, P. I., Faulkner, G. E., Bajaj, R. R., Silver, M. A., Mitchell, M. S., & Alter, D. A. (2015) · Annals of Internal Medicine · doi:10.7326/m14-1651 · Cited by 2,726
PATEL, A. V., FRIEDENREICH, C. M., MOORE, S. C., HAYES, S. C., SILVER, J. K., CAMPBELL, K. L., WINTERS-STONE, K., GERBER, L. H., GEORGE, S. M., FULTON, J. E., et al. (2019) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0000000000002117 · Cited by 861
Association of Obesity With Risk of Early-Onset Colorectal Cancer Among Women
Liu, P.-H., Wu, K., Ng, K., Zauber, A. G., Nguyen, L. H., Song, M., He, X., Fuchs, C. S., Ogino, S., Willett, W. C., et al. (2019) · JAMA Oncology · doi:10.1001/jamaoncol.2018.4280 · Cited by 514
Dempsey, P. C., Biddle, S. J. H., Buman, M. P., Chastin, S., Ekelund, U., Friedenreich, C. M., Katzmarzyk, P. T., Leitzmann, M. F., Stamatakis, E., van der Ploeg, H. P., et al. (2020) · International Journal of Behavioral Nutrition and Physical Activity · doi:10.1186/s12966-020-01044-0 · Cited by 275
Self-citationThe effect of interventions targeting screen time reduction: A systematic review and meta-analysis
Wu, L., Sun, S., He, Y., & Jiang, B. (2016) · Medicine · doi:10.1097/md.0000000000004029 · Cited by 95
Metadata
- Authors
- Schmid, D., & Leitzmann, M. F.
- Venue
- JNCI: Journal of the National Cancer Institute
- Publisher
- Oxford University Press (OUP)
- Published
- 2014-06-16
- Volume
- 106
- Issue
- 7
- ISSN
- 0027-8874 (ISSN-L)
- 1460-2105
- OpenAlex
- W2101048627
- Cited by
- 359
- References
- 15
- FWCI
- 4.58
- Type
- journal article
- Language
- en
- Open access
- closed
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