Description Usage Format Source
The Physicians health study data cross-classified according to Infarct (heart attack or not) and Group (Placebo or Aspirin).
1 |
A 2 by 2 matrix of counts with row names:
Infarct:Yes and Infarct:No,
and column names:
Group:placebo and Group:aspirin.
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.
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