Quality-of-life index: Implications for prognosis in colorectal cancer
16032 Background: Quality of Life (QoL) assessment is important to evaluate the impact of disease and treatment in patients with advanced cancer. Recently, it has been hypothesized that patient satisfaction with their QoL may have a prognostic role in cancer, however, there is little evidence in the literature to support this view. The Ferrans and Powers Quality of Life Index (QLI) is one such instrument. QLI defines QoL as a person’s sense of well-being that stems from satisfaction or dissatisfaction with the areas of life that are important to him/her. The purpose of this study was to determine whether baseline QLI would predict length of survival in patients with colorectal cancer undergoing care in a non-clinical trial setting. Methods: We examined a case series of 177 colorectal cancer patients treated at Cancer Treatment Centers of America between 04/01 and 11/04. QLI measures global QoL and QoL in four major subscales: health and physical, social and economic, psychological and spiritual, and family. All scores range from 0 to 30 with higher scores indicating better QoL. QLI subscales were dichotomized at the median to split the patient population into 2 distinct groups. Kaplan Meier method with Log Rank test was used to calculate survival. Results: Of 177 patients, 46 were newly diagnosed and 131 had prior treatment history. The median age was 53 years (range 25– 85 years). 8 patients had stage I disease, 16 stage II, 51 stage III, and 77 stage IV. Table 1 describes the median survival for all QLI subscales. Conclusions: Baseline levels of patient satisfaction with their health and physical functioning provided useful prognostic information in colorectal cancer. Interestingly, the other subscales that evaluate various existential and economic issues did not provide statistically significant differences in survival. These findings need to be evaluated further to ascertain which subscales of QLI have a role in predicting patients’ prognosis. [Table: see text] No significant financial relationships to disclose.