R: Left Ventricular Ejection Fraction

hohnloser {coin} | R Documentation

## Left Ventricular Ejection Fraction

### Description

Left ventricular ejection fraction in patients with malignant ventricular tachyarrhythmias including recurrence-free month and censoring.

### Usage

    hohnloser

### Format

A data frame with 94 observations on 3 variables.

`EF`

  ejection fraction (%).

`time`

  recurrence-free month.

`event`

  status indicator for `time`: `0` for censored observations and `1` otherwise.

### Details

The data was used by Lausen and Schumacher (1992) to illustrate the use of maximally selected statistics.

### Source

Hohnloser, S. H., Raeder, E. A., Podrid, P. J., Graboys, T. B. and Lown, B. (1987). Predictors of antiarrhythmic drug efficacy in patients with malignant ventricular tachyarrhythmias. American Heart Journal 114(1 Pt 1), 1–7.

### References

Lausen, B. and Schumacher, M. (1992). Maximally selected rank statistics. Biometrics 48(1), 73–85.

### Examples

    ## Asymptotic maximally selected logrank statistics
    maxstat_test(Surv(time, event) ~ EF, data = hohnloser)

[Package coin version 1.1-3 Index]