title: Associations of leisure-time physical activity with quality of life in a large, population-based sample of colorectal cancer survivors.
abstract: OBJECTIVE
  To examine the associations between physical activity and quality of life for colorectal cancer survivors; and to describe the associations of medical and sociodemographic attributes with overall quality of life, and their moderating effects on the relationships between physical activity and quality of life.
  
  
  METHODS
  Telephone interviews were conducted with 1,996 colorectal cancer survivors recruited through the Queensland Cancer Registry. Data were collected on current quality of life; leisure-time physical activity pre- and post-diagnosis; cancer treatment and side-effects; and general sociodemographic attributes. Hierarchical generalized linear models identified variables significantly associated with quality of life.
  
  
  RESULTS
  After controlling for sociodemographic variables, disease-specific variables, treatment side-effects, and pre-diagnosis leisure-time physical activity, there were significant differences in quality of life scores by post-diagnosis physical activity category. Compared to participants who were inactive after their diagnosis, those who were sufficiently active had a 17.0% higher total quality of life score. Physical activity also had a significant independent positive association with the physical well-being, functional well-being, and additional concerns subscales of the FACT-C.
  
  
  CONCLUSIONS
  Our findings demonstrate that quite modest changes in leisure-time physical activity are associated with quality of life. Colorectal cancer survivors may benefit from a more active lifestyle.
authors.affiliation: Viertel Centre for Research in Cancer Control, The Cancer Council Queensland, PO Box 201, Spring Hill, Brisbane 4004, Australia. brigidlynch@qldcancer.com.au
authors.forename: Brigid M
authors.initials: BM
authors.lastname: Lynch
authors.forename: Ester
authors.initials: E
authors.lastname: Cerin
authors.forename: Neville
authors.initials: N
authors.lastname: Owen
authors.forename: Joanne F
authors.initials: JF
authors.lastname: Aitken
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D015179:Colorectal Neoplasms / Q000523:psychology* / Q000534:rehabilitation; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D044382:Population Groups; D011788:Quality of Life; D012959:Socioeconomic Factors; D017741:Survivors