Skip to main content

Advertisement

Table 5 Effect of training and test set sizes on the power for Model A

From: Assessment of performance of survival prediction models for cancer prognosis

Training: Test Single Group Analysis High- versus Low-Risk Group Analysis
Cox Model I Cox Model II Log-rank test
78:19 0.3945 0.2623 0.2819
65:32 0.6000 0.4164 0.4312
49:48* 0.7630 0.5032 0.5164
32:65 0.7746 0.5226 0.5294
25:72 0.7042 0.5166 0.5232
19:78 0.563 0.4058 0.412
  1. * From Table 4.
  2. The 97 total patients were randomly split into a training set and a test set. The numbers of patients for the training set investigated were 78, 65, 32, 25, and 19. The values are the proportion that the estimated p-values were less than or equal to 0.05 from a total of 10,000 computations, based on 10,000 randomly splits.