title: A randomized controlled trial of a multiple health behavior change intervention delivered to colorectal cancer survivors: effects on sedentary behavior.
abstract: BACKGROUND
  Sedentary behavior may independently contribute to morbidity and mortality among survivors of colorectal cancer. In the current study, the authors assessed whether a telephone-delivered multiple health behavior change intervention had an effect on the sedentary behavior of recently diagnosed colorectal cancer survivors.
  
  
  METHODS
  A total of 410 participants were recruited through the Queensland Cancer Registry and randomized to the health coaching (intervention) or usual-care (control) group. Eleven health coaching sessions addressing multiple health behaviors, including sedentary behavior, were delivered over a period of 6 months. Data were collected at baseline (before randomization), at 6 months, and at 12 months via a telephone interview.
  
  
  RESULTS
  At 12 months, there was a significant decrease noted in the hours per day of sedentary time in both the health coaching (-1.21; 95% confidence interval [95% CI], -1.71 to -0.70) and usual-care groups (-0.55; 95% CI, -1.06 to -0.05), but the between-group difference was not found to be statistically significant (-0.65; 95% CI, -1.37 to 0.06 [P = .07]). In stratified subgroup analyses, the multiple health behavior change intervention was found to have a significant effect on total sedentary time (hours/day) at 12 months in survivors of colorectal cancer who were aged > 60 years (-0.90; 95% CI, -1.80 to -0.01 [P = .05]), male (-1.33; 95% CI, -2.44 to -0.21 [P = .02]), and nonobese (-1.10; 95% CI, -1.96 to -0.25; [P = .01]).
  
  
  CONCLUSIONS
  Incorporating simple messages about limiting sedentary behaviors into a multiple health behavior change intervention was found to have modest effects on sedentary behavior. A sedentary behavior-specific intervention strategy may be required to achieve substantial changes in sedentary behavior among colorectal cancer survivors.
authors.affiliation: Physical Activity Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia; Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia.
authors.forename: Brigid M
authors.initials: BM
authors.lastname: Lynch
authors.forename: Kerry S
authors.initials: KS
authors.lastname: Courneya
authors.forename: Parneet
authors.initials: P
authors.lastname: Sethi
authors.forename: Tania A
authors.initials: TA
authors.lastname: Patrao
authors.forename: Anna L
authors.initials: AL
authors.lastname: Hawkes
mesh_terms: D000368:Aged; D015992:Body Mass Index; D015179:Colorectal Neoplasms / Q000523:psychology / Q000628:therapy*; D003695:Delivery of Health Care; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D057185:Sedentary Behavior; D017741:Survivors; D013689:Telephone
keywords: cancer survivorship; colorectal cancer; randomized controlled trial; sitting time; television