Survival in patients with advanced lung cancer from the North Central Cancer Treatment Group. Performance scores rate how well the patient can perform usual daily activities.
lung data(cancer, package="survival")
|time:||Survival time in days|
|status:||censoring status 1=censored, 2=dead|
|age:||Age in years|
|ph.ecog:||ECOG performance score as rated by the physician. 0=asymptomatic, 1= symptomatic but completely ambulatory, 2= in bed <50% of the day, 3= in bed > 50% of the day but not bedbound, 4 = bedbound|
|ph.karno:||Karnofsky performance score (bad=0-good=100) rated by physician|
|pat.karno:||Karnofsky performance score as rated by patient|
|meal.cal:||Calories consumed at meals|
|wt.loss:||Weight loss in last six months (pounds)|
Loprinzi CL. Laurie JA. Wieand HS. Krook JE. Novotny PJ. Kugler JW. Bartel J. Law M. Bateman M. Klatt NE. et al. Prospective evaluation of prognostic variables from patient-completed questionnaires. North Central Cancer Treatment Group. Journal of Clinical Oncology. 12(3):601-7, 1994.