cardiacsurgery: Cardiac surgery data
Description
A dataset describing the results of cardiac surgery. The data give
information about the date of surgery, surgeon, Parsonnet score and
outcome up to 90 days after surgery.
Usage
data(cardiacsurgery)
Format
A data frame with 5595 rows and 5 variables:
|
date: |
| date of the operation in days since the beginning of study |
|
time: |
| number of days between surgery and the earlier of death and 90 days |
|
status: |
| status at endpoint, 0/1 for censored/dead |
|
Parsonnet: |
| Parsonnet score of the patient |
|
surgeon: |
| surgeon performing the operation, numbered from 1 to 7 |
Source
Based on the data described in Steiner et al (2000). A
subset of the data has been selected, some noise has been
introduced and the follow-up was censored at 90 days.References
Steiner SH, Cook RJ, Farewell VT, Treasure T (2000).
Monitoring surgical performance using risk-adjusted cumulative sum
charts. Biostat 1(4) 441-452.