The ASSIST Trial baseline data from Yudkin and Moher 2001 consist of 21 general practices containing 2142 patients used for the design of a randomized trial which assigned to three treatments aiming to compare methods of preventing coronary heart disease. This data frame is aggregated to the practice level. We added a simulated randomized treatment variable.
ym_shortA data frame with 21 rows and 8 columns
practice: Identifier for the practice
n_practice: Number of patients with CHD in the practice
assessed: Whether a patient was coded as "adequately assessed" (the outcome of the study, measured here at baseline).
aspirin: Whether a patient was treated with aspirin at baseline.
hypo: Whether a patient was treated with hypotensives at baseline.
lipid: Whether patient was treated with lipid-lowering drugs at baseline.
assess_strata: Strata of the practice defined by the proportion of people adequately assessed at baseline (three strata, following Yudkin and Moher 2001).
trt: A simulated binary treatment, assigned at random at the practice level within levels of assess_strata.
Yudkin, P. L. and Moher, M. 2001. "Putting theory into practice: a cluster randomized trial with a small number of clusters" Statistics in Medicine, 20:341-349.