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.
Format
A data frame with 90 observations on the following 2 variables.
- group
a factor with levels
controlandtreatment- outcome
a factor with levels
diedandsurvived
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