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Obtains the Miettinen-Nurminen score test statistic for two-sample rate difference possibly with stratification.

Usage

zstatRateDiff(t1, y1, t2, y2, rateDiffH0 = 0)

Arguments

t1

The exposure for the active treatment group.

y1

The number of events for the active treatment group.

t2

The exposure for the control group.

y2

The number of events for the control group.

rateDiffH0

The rate difference under the null hypothesis. Defaults to 0.

Value

The value of the score test statistic.

Details

The Mantel-Haenszel weights are used for stratified samples.

Author

Kaifeng Lu, kaifenglu@gmail.com

Examples


zstatRateDiff(t1 = c(10, 10), y1 = c(4, 3),
              t2 = c(20, 10), y2 = c(2, 0), rateDiffH0 = 0)
#> [1] 2.424871