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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Lifetime Data Anal. 2014 Nov 25;21(2):197–217. doi: 10.1007/s10985-014-9313-9

Table 2.

Estimated Power for Testing Proportional Hazards Assumption

n c(%) Proposed t t2 log(t)
50 15 0.3260 0.4305 0.2800 0.2700
50 30 0.2100 0.2815 0.2215 0.1795
100 15 0.5560 0.7840 0.5490 0.4495
100 30 0.3920 0.5870 0.4405 0.3085
300 15 0.9590 0.9985 0.9295 0.8910
300 30 0.8420 0.9780 0.8775 0.7365