“…11,20,21 With regard to age, it is often assumed that elderly patients fare worse after treatment, but few data support this view. [21][22][23][24] Functional status, as measured with the Karnofsky performance status (KPS), 25 a reliable and valid instrument to assess the functional status of cancer patients, 26 has been shown to be positively correlated with QOL. 27,28 Last, psychologic status may profoundly influence physical functioning, symptom perception, and mood after treatment.…”