These patients were randomly divided into a treatment group where they received a blood thinner or the control group where they did not receive a blood thinner. The outcome variable of interest was whether the patients survived for at least 24 hours.

## Usage

cpr

## Format

A data frame with 90 observations on the following 2 variables.

group

a factor with levels control and treatment

outcome

a factor with levels died and survived

## Source

Efficacy and safety of thrombolytic therapy after initially unsuccessful cardiopulmonary resuscitation: a prospective clinical trial, by Bottiger et al., The Lancet, 2001.

## Examples


table(cpr)
#>            outcome
#> group       died survived
#>   control     39       11
#>   treatment   26       14