“…Identification of such factors could improve prognostic accuracy and facilitate health care providers' decision making in selecting the most appropriate care plan [14]. Prior studies have shown the following to have predictive value for assessing the length of survival of terminal cancer patients: performance status [8-10, 14, 40], pain [40], fatigue [8,10,39], clinical symptoms [8,40], and quality of life [12,36,64]. Some studies of cancer patients, including patients not necessarily in a terminal phase, have identified quality of life as having an important prognostic factor [6,16,20].…”