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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 3.

Estimated Power for Testing Proportional Hazards Assumption

n c(%) Proposed t t2 log(t)
50 15 0.3510 0.2450 0.1450 0.2565
50 30 0.2045 0.1680 0.1385 0.1785
100 15 0.5770 0.4350 0.2275 0.4050
100 30 0.3760 0.3215 0.2050 0.2560
300 15 0.9715 0.9125 0.4930 0.8775
300 30 0.8025 0.7620 0.3835 0.5905