Aspirin {evidence}

A contingency table for heart attacks and aspirin use.

Description

The Physicians health study data cross-classified according to Infarct (heart attack or not) and Group (Placebo or Aspirin).

Usage

data(Aspirin)

Format

A 2 by 2 matrix of counts with row names:

Infarct:Yes and Infarct:No,

and column names:

Group:placebo and Group:aspirin.

Source

Steering Committee of the Physicians' Health Study Research Group. 1989. Final report of the aspirin component of the ongoing Physicians' Health Study. N Engl J Med, 321:129–135.

van Hulst, R. 2018. Evaluating Scientific Evidence. ms.