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Cancer Causes Control. 2009 Oct;20(8):1355-62. doi: 10.1007/s10552-009-9356-5. Epub 2009 May 17.

Television viewing time and weight gain in colorectal cancer survivors: a prospective population-based study.

Author information

  • 1MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital, Hills Road, P.O. Box 285, Cambridge, CB2 0QQ, UK. katrien.wijndaele@mrc-epid.cam.ac.uk

Abstract

OBJECTIVE:

To investigate the prospective relationships between television viewing time and weight gain in the 3 years following colorectal cancer diagnosis for 1,867 colorectal cancer survivors (body mass index (BMI) > or = 18.5 kg/m(2)).

METHODS:

BMI, television viewing time, physical activity, and socio-demographic and clinical covariates were assessed at baseline (5 months), 24 months and 36 months post-diagnosis. Multiple linear regression was used to study independent associations between baseline television viewing time and BMI at 24 and 36 months post-diagnosis.

RESULTS:

At both follow-up time points, there was a significant increase in mean BMI for participants reporting > or =5 h/day of television viewing compared to those watching <3 h/day at baseline (24 months: 0.72 kg/m(2) (0.31, 1.12), p < 0.001; 36 months: 0.61 kg/m(2) (0.14, 1.07), p = 0.01), independent of baseline BMI, gender, age, education, marital status, smoking, cancer site, cancer disease stage, treatment mode and co-morbidities. Additional adjustment for baseline physical activity did not change results.

CONCLUSIONS:

These findings suggest that a greater emphasis on decreasing television viewing time could help reduce weight gain among colorectal cancer survivors. This, in turn, could contribute to a risk reduction for co-morbid conditions such as type 2 diabetes and cardiovascular disease.

PMID:
19449106
[PubMed - indexed for MEDLINE]
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