zstatRateDiff {lrstat}

Miettinen-Nurminen score test statistic for two-sample rate difference

Description

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

Usage

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

Arguments

rateDiffH0

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

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.

Details

The Mantel-Haenszel weights are used for stratified samples.

Value

The value of the score test statistic.

Author(s)

Kaifeng Lu, [e-mail]

Examples

zstatRateDiff(rateDiffH0 = 0, t1 = c(10,10), y1 = c(4,3),
              t2 = c(20,10), y2 = c(2,0))