Data from a meta-analysis of medical experiments, used in Gelman et al. (2003, chapter 5) and in an exercise in Chapter 17 to illustrate multilevel logistic regression: Results of 22 clinical trials of beta-blockers for reducing mortality after myocardial infarction, with empirical log-odds and approximate sampling variances. Data from Yusuf et al. (1985). Study Control(deaths/total) Treated(deaths/total) 1 3/39 3/38 2 14/116 7/114 3 11/93 5/69 4 127/1520 102/1533 5 27/365 28/355 6 6/52 4/59 7 152/939 98/945 8 48/471 60/632 9 37/282 25/278 10 188/1921 138/1916 11 52/583 64/873 12 47/266 45/263 13 16/293 9/291 14 45/883 57/858 15 31/147 25/154 16 38/213 33/207 17 12/122 28/251 18 6/154 8/151 19 3/134 6/174 20 40/218 32/209 21 43/364 27/391 22 39/674 22/680