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.
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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