Journal
CANCER CAUSES & CONTROL
Volume 20, Issue 8, Pages 1355-1362Publisher
SPRINGER
DOI: 10.1007/s10552-009-9356-5
Keywords
Colorectal neoplasms; Body mass index; Health behavior; Longitudinal studies
Funding
- Cancer Council Queensland
- Queensland Health Core Research Infrastructure
- NHMRC Program [301200]
- Victorian Health Promotion Foundation Public Health Research Fellowship
- Medical Research Council [MC_U106179473] Funding Source: researchfish
- MRC [MC_U106179473] Funding Source: UKRI
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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) >= 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 >= 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.
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