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.

data(lung)

Format

A data frame containing 228 observations on 10 variables.

inst

Institution code

time

Survival time in days

status

censoring status 1=censored, 2=dead

age

Age in years

sex

Male=1 Female=2

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)

Source

Terry Therneau. (2021). survival: Survival Analysis. R package version 3.4-2. https://CRAN.R-project.org/package=survival

Note

This dataset is sourced from the survival package.

References

  • 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.

See also

lung for the original dataset in the survival package

Examples

data(lung)
summary(lung)
#>       inst            time            status           age       
#>  Min.   : 1.00   Min.   :   5.0   Min.   :1.000   Min.   :39.00  
#>  1st Qu.: 3.00   1st Qu.: 166.8   1st Qu.:1.000   1st Qu.:56.00  
#>  Median :11.00   Median : 255.5   Median :2.000   Median :63.00  
#>  Mean   :11.09   Mean   : 305.2   Mean   :1.724   Mean   :62.45  
#>  3rd Qu.:16.00   3rd Qu.: 396.5   3rd Qu.:2.000   3rd Qu.:69.00  
#>  Max.   :33.00   Max.   :1022.0   Max.   :2.000   Max.   :82.00  
#>  NA's   :1                                                       
#>       sex           ph.ecog          ph.karno        pat.karno     
#>  Min.   :1.000   Min.   :0.0000   Min.   : 50.00   Min.   : 30.00  
#>  1st Qu.:1.000   1st Qu.:0.0000   1st Qu.: 75.00   1st Qu.: 70.00  
#>  Median :1.000   Median :1.0000   Median : 80.00   Median : 80.00  
#>  Mean   :1.395   Mean   :0.9515   Mean   : 81.94   Mean   : 79.96  
#>  3rd Qu.:2.000   3rd Qu.:1.0000   3rd Qu.: 90.00   3rd Qu.: 90.00  
#>  Max.   :2.000   Max.   :3.0000   Max.   :100.00   Max.   :100.00  
#>                  NA's   :1        NA's   :1        NA's   :3       
#>     meal.cal         wt.loss       
#>  Min.   :  96.0   Min.   :-24.000  
#>  1st Qu.: 635.0   1st Qu.:  0.000  
#>  Median : 975.0   Median :  7.000  
#>  Mean   : 928.8   Mean   :  9.832  
#>  3rd Qu.:1150.0   3rd Qu.: 15.750  
#>  Max.   :2600.0   Max.   : 68.000  
#>  NA's   :47       NA's   :14