+-----------+-------------------+
| aspirin   | R Documentation   |
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Aspirin Data
------------

Description
~~~~~~~~~~~

Efficacy of Aspirin in preventing death after a myocardial infarct.

Usage
~~~~~

::

    data("aspirin")

Format
~~~~~~

A data frame with 7 observations on the following 4 variables.

``dp``
    number of deaths after placebo.

``tp``
    total number subjects treated with placebo.

``da``
    number of deaths after Aspirin.

``ta``
    total number of subjects treated with Aspirin.

Details
~~~~~~~

The data were collected for a meta-analysis of the effectiveness of
Aspirin (versus placebo) in preventing death after a myocardial
infarction.

Source
~~~~~~

J. L. Fleiss (1993), The statistical basis of meta-analysis.
*Statistical Methods in Medical Research* **2**, 121â€“145.

Examples
~~~~~~~~

::


      data("aspirin", package = "HSAUR")
      aspirin

