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Health-Related Quality of Life in Female Long-Term Colorectal Cancer Survivors

^a University of Wisconsin Comprehensive Cancer Center, Madison, Wisconsin, USA; ^b Department of Population Health Sciences, University of Wisconsin, Madison, Wisconsin, USA; ^c Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

Correspondence: A. Trentham-Dietz, Ph.D., 610 Walnut Street, WARF Room 701, Madison, Wisconsin 53726, USA. Telephone: 608-265-4175; Fax: 608-265-5330; e-mail: trentham{at}wisc.edu

Although the number of women who survive treatment for colorectal cancer is growing, little is known about the quality of life of long-term survivors. The purpose of analyses presented in this paper is to describe the overall health-related quality of life of female long-term colorectal cancer survivors and the factors that may modify their levels of quality of life. A population-based sample of 726 Wisconsin women diagnosed with colorectal cancer from 1990–1991 was recontacted. Of the 443 women alive in 1999, 307 (69%) completed a follow-up questionnaire including the Medical Outcomes Study Short-Form 36 Health Status Survey, which is comprised of 36 items that generate nine domain scale scores and two summary scores: the Physical Component Summary score and the Mental Component Summary score. The mean follow-up was 9 years (range 7–11), and the mean age at follow-up was 72 years (range 43–85). The mean Physical Component Summary score was lower for participants with greater ages, greater numbers of comorbidities, and greater body masses at the time of follow-up. The mean Mental Component Summary score also was lower for participants with greater numbers of comorbidities. Differences associated with degree of comorbidity were observed for all eight domain scales. Female long-term survivors of colorectal cancer appear to report health-related quality of life comparable with that of similarly aged women in the general population. These data suggest that, over the long term, factors attributable to aging, body weight, and chronic medical conditions play more dominant roles in determining physical and mental health than factors related to the initial colorectal cancer diagnosis.

Key Words. Quality of life • Colorectal neoplasms • Survivorship • Comorbidity • Body mass

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