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. Author manuscript; available in PMC: 2013 Aug 15.
Published in final edited form as: Stat Med. 2012 Sep 27;32(7):1164–1190. doi: 10.1002/sim.5628

Table 1.

Empirical type I errors of ΛR and ΛG based on 1000 simulations under each parametric configuration. Here α1 and β1 are the main effects of the two risk factors, and ρ is the correlation between the risk factors.

ρ α1 β1 ΛR ΛG
0 log(1) = 0 0 0.100 0.047
log(2) = 0.6931 log(2) 0.031 0.048
log(3) = 1.0986 log(3) 0.042 0.055
0.50 log(1) = 0 0 0.049 0.045
log(2) = 0.6931 log(2) 0.056 0.048
log(3) = 1.0986 log(3) 0.050 0.057
0.80 log(1) = 0 0 0.035 0.046
log(2) = 0.6931 log(2) 0.071 0.049
log(3) = 1.0986 log(3) 0.067 0.046