Impact of Comorbidity on Health-Related Quality of Life in Men Undergoing Radical Prostatectomy

Data from CaPSURE

Published in: Urology, v. 67, no. 3, Mar. 2006, p. 559-565

Posted on RAND.org on December 31, 2005

by Shelley A. Arredondo, Eric P. Elkin, Paige L. Marr, David M. Latini, Janeen DuChane, Mark Litwin, Peter R. Carroll

Read More

Access further information on this document at Urology

This article was published outside of RAND. The full text of the article can be found at the link above.

OBJECTIVES: Comorbidity is one of many factors that may affect health-related quality of life (HRQOL) in men with prostate cancer. The authors hypothesized that the number and type of comorbidities negatively affect HRQOL in men undergoing radical prostatectomy. METHODS: The authors reviewed HRQOL outcomes before and up to 2 years after radical prostatectomy for men with localized prostate cancer in the Cancer of the Prostate Strategic Urologic Research Endeavor (CaPSURE), a longitudinal disease registry. This analysis focused on 856 men who completed a pretreatment survey and at least one posttreatment survey. HRQOL was assessed using the University of California, Los Angeles, Prostate Cancer Index (six subscales) and the Medical Outcomes Study 36-Item Short Form questionnaire (eight subscales and two summary scales). The associations between HRQOL and the number and type of comorbidities were analyzed using repeated measures during a 2-year follow-up period. RESULTS: Preoperatively, men with no comorbidities had greater HRQOL scores than did men with comorbidities for physical health and disease-specific measures, but not for mental health measures. Only sexual function and the physical component summary scores showed a significant interaction between the number of comorbidities and time (P <0.01 and P = 0.03, respectively). Significant interactions with time were observed for other urinary conditions, gastrointestinal disease, heart disease, and hypertension on at least one HRQOL domain. CONCLUSIONS: Men with comorbidities had worse HRQOL scores than men without comorbidities, both before and after radical prostatectomy. However, with two exceptions, the scores declined at similar rates after surgery. Specific comorbidities also had an association with certain HRQOL domains. Therefore, during preoperative counseling, clinicians should consider a patient's number and type of comorbidities.

This report is part of the RAND Corporation external publication series. Many RAND studies are published in peer-reviewed scholarly journals, as chapters in commercial books, or as documents published by other organizations.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.