Skip to main content
. Author manuscript; available in PMC: 2015 Jun 20.
Published in final edited form as: Clin Trials. 2012 Feb 14;9(2):232–246. doi: 10.1177/1740774512436882

Table 7.

Sample sizes required for alternative designs using classical power calculations.

Study Design Sample Size by Power
80% 85% 90%
A: Proposed design 20,228 23,138 27,078
B: Hard CVD 42,834 48,998 57,342
C: All CHD 22,026 25,196 29,488
D: Death or any CHD 30,764 35,190 41,184
E: Death or any CVD 26,856 30,722 35,954
F: CAC cutpoints 0/300 21,760 24,892 29,130
G: CAC cutpoints 10/100 23,972 27,420 32,090
H: CAC cutpoints 10/300 25,966 29,702 34,760
I: FRS of 0.04/0.75/0.2/0.01 19,076 21,820 25,536
J: Simvastatin 27,448 31,398 36,744
K: Simvastatin with min 10 mg 27,880 31,892 37,324