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Television watching and colorectal cancer survival in men.

ABSTRACT: To assess the association between pre- and postdiagnostic time spent sitting watching TV as well as other sedentary behaviors (other sitting at home and at work/driving) and mortality from colorectal cancer or other causes, and overall mortality.We followed stage I-III colorectal cancer patients from the Health Professionals Follow-up Study (1986-2010). Cox models were used to calculate hazard ratios (HRs) and 95 % confidence intervals (CIs).A total of 926 and 714 patients were included in the analysis of pre- and postdiagnostic TV watching, respectively, and 471 and 325 died during follow-up. Prolonged prediagnostic TV viewing was associated with increased risk of colorectal cancer-specific mortality independent of leisure-time physical activity. The HRs (95 % CIs) for 0-6, 7-13, 14-20, and ?21 h/week were 1.00 (referent), 0.84 (0.56-1.25), 1.15 (0.75-1.78), and 2.13 (1.31-3.45) (p trend = 0.01). The association was observed primarily among overweight and obese individuals. Prediagnostic TV watching was also associated with overall mortality within 5 years of diagnosis, largely due to the association with colorectal cancer mortality. Other prediagnostic sitting at home or at work/driving was not associated with mortality. Postdiagnostic TV viewing was associated with a nonsignificantly increased risk of colorectal cancer-specific mortality (HR for ?21 vs 0-6 h/week = 1.45; 95 % CI 0.73-2.87) adjusting for TV viewing before diagnosis.Prolonged prediagnostic TV watching is associated with higher colorectal cancer-specific mortality independent of leisure-time physical activity among colorectal cancer patients.

SUBMITTER: Cao Y

PROVIDER: S-EPMC4610734 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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Television watching and colorectal cancer survival in men.

Cao Yin Y Meyerhardt Jeffrey A JA Chan Andrew T AT Wu Kana K Fuchs Charles S CS Giovannucci Edward L EL

Cancer causes & control : CCC 20150821 10

<h4>Purpose</h4>To assess the association between pre- and postdiagnostic time spent sitting watching TV as well as other sedentary behaviors (other sitting at home and at work/driving) and mortality from colorectal cancer or other causes, and overall mortality.<h4>Methods</h4>We followed stage I-III colorectal cancer patients from the Health Professionals Follow-up Study (1986-2010). Cox models were used to calculate hazard ratios (HRs) and 95 % confidence intervals (CIs).<h4>Results</h4>A tota ...[more]

PMID: 26293240

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Project description:BACKGROUND:Television (TV) watching at family meals has been associated with poorer dietary quality and weight outcomes in children. Most research has been limited to family meals, overlooking the influence of TV at any meal. OBJECTIVE:This study assesses how often children are eating meals at home while watching TV, the association between child dietary intake while watching TV during meals eaten at home and whether the association depends on meal type (eg, breakfast) or child race/ethnicity, and whether the number of meals consumed while watching TV at home is associated with overall child dietary quality or weight status. DESIGN:The Family Matters study utilized a cross-sectional design and was conducted between 2015 and 2016. PARTICIPANTS/SETTING:Three 24-hour dietary recalls were conducted on children aged 5 to 7 years (n=150; 25 each from non-Hispanic white, African American, Latino, Native American, Somali, and Hmong households). MAIN OUTCOME MEASURES:Main outcomes of this study were dietary intake at meals, overall dietary quality, and child weight status. STATISTICAL ANALYSIS PERFORMED:Conditional fixed effects estimators were used to address correlated error terms to model within-person variation between TV and dietary intake and race/ethnicity differences in child dietary outcomes. RESULTS:TV was watched during 30% of meals eaten at home, which differed significantly by race/ethnicity (P<0.001). Although effect sizes were small, TV watching at meals was associated with unhealthier intake of some foods groups (eg, increased sugar-sweetened beverages and chips/crackers and decreased fruits), dependent on the meal occasion (eg, snacks). However, TV watching during meals at home was not significantly associated with dietary intake for other food groups. These associations did not depend on race/ethnicity. An association between number of meals consumed while watching TV with overall dietary quality or weight status was not found. CONCLUSIONS:Although more research is needed, results suggest TV watching while eating meals at home is relatively common, depends on race/ethnicity, and that TV watching at some meal occasions is associated with child intake of certain food groups, with a majority being unhealthy.

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Television watching and colorectal cancer survival in men.

Publications

Television watching and colorectal cancer survival in men.

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