| pbc {survival} | R Documentation |
Followup of 312 randomised and 108 unrandomised patients with primary biliary cirrhosis, a rare autoimmune liver disease, at Mayo Clinic. Most variables have some missing data, coded as -9.
data(pbc)
| age: | in years |
| alb: | serum albumin |
| alkphos: | alkaline phosphotase |
| ascites: | presence of ascites |
| bili: | serum bilirunbin |
| chol: | serum cholesterol |
| edema: | presence of edema |
| edtrt: | 0 no edema, 0.5 untreated or successfully treated |
| 1 unsuccessfully treated edema | |
| hepmeg: | enlarged liver |
| time: | survival time |
| platelet: | platelet count |
| protime: | standardised blood clotting time |
| sex: | 1=male |
| sgot: | liver enzyme (now called AST) |
| spiders: | blood vessel malformations in the skin |
| stage: | histologic stage of disease (needs biopsy) |
| status: | censoring status |
| trt: | 1/2/-9 for control, treatment, not randomised |
| trig: | triglycerides |
| copper: | urine copper |
Fleming TR, Harrington DP. "Counting Processes and Survival Analysis" Wiley:New York