Left ventricular ejection fraction of patients with malignant ventricular tachyarrhythmias

Description

A data frame with the left ventricular ejection fraction of patients with malignant ventricular including recurrence-free month and censoring.

Usage

data(hohnloser)

Format

EF

left ventricular ejection in percent

month

recurrence-free month

cens

censoring: 0 cencored, 1 not censored

The data used here is published in Table 1 of Lausen and Schumacher (1992).

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, 1–7

References

Lausen, B. and Schumacher, M. (1992), Maximally Selected Rank Statistics. Biometrics 48, 73–85

Examples

data(hohnloser)

# The approximation used in Lausen & Schumacher

maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
smethod="LogRank", pmethod="Lau92")

# improved Bonferroni inequality

maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
smethod="LogRank", pmethod="Lau94")

# The approximation by Hothorn & Lausen

maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
smethod="LogRank", pmethod="HL", plot=T)

maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
smethod="LogRank", pmethod="exactGauss")