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Table 4 Distribution of p value ratio r across 55 comparisons in 50 randomised trials

From: Combined test versus logrank/Cox test in 50 randomised trials

Ratio (r) Evidence of non-PH Total
r=p(CT)/p(Cox) No (%) Yes (%)  
r≤0.5 2 (15) 11 (85) 13 (100)
0.5<r≤1.0 7 (64) 4 (36) 11 (100)
r>1.0 29 (94) 2 (6) 31 (100)
Total 38 (69) 17 (31) 55 (100)
  1. Based on evidence of non-PH of the treatment effect, defined by p(GT)<0.1. r<1 favours the combined test
  2. CT combined test,
  3. GT Grambsch–Therneau test,
  4. PH proportional hazards