Abnormal prothrombin levels in liver cirrhosis

Description

A data frame of 488 liver cirrhosis patients from a randomized clinical trial concerning prednisone treatment in these patients. The dataset is in long format. The included variables are

id

Patient identification number

from

Starting state

to

Receiving state

trans

Transition number

Tstart

Starting time

Tstop

Transition time

status

Status variable; 1=transition, 0=censored

treat

Treatment; factor with levels "Placebo", "Prednisone"

Format

A data frame, see data.frame.

Details

This data was kindly provided by Per Kragh Andersen. It was introduced in Andersen, Borgan, Gill & Keiding (1993), Example 1.3.12, and used as illustration for computation of transition probabilities in multi-state models, see Sections IV.4 (Example IV.4.4) and VII.2 (Example VII.2.10).

References

Andersen PK, Borgan O, Gill RD, Keiding N (1993). Statistical Models Based on Counting Processes. Springer, New York.