Description Usage Format Source References
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.
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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 |
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.
Steiner SH, Cook RJ, Farewell VT, Treasure T (2000). Monitoring surgical performance using risk-adjusted cumulative sum charts. Biostat 1(4) 441-452.
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