Training set n = 189 | Scandinavian set n = 815 | Italian set n = 287 | ||||||
---|---|---|---|---|---|---|---|---|
Feature | % missing | % missing | vs. Training set p | vs. Scandinavian set p | ||||
Age at surgery (years)b | Mean | 62.4 | 66.3 | 0 | 63.1 | 0 | 0.54 | <0.005* |
SD | 13.7 | 12.8 | 11.7 | |||||
Median | 62.7 | 67 | 64 | |||||
IQR | 54.4, 72.2 | 58, 76 | 56, 72 | |||||
Hemoglobin concentration (mg/dL) a,b | Mean | 11.5 | 11.5 | 0.6 | 11.5 | 10 | 0.83 | 0.90 |
SD | 1.9 | 3.5 | 1.4 | |||||
Median | 11.4 | 11.3 | 12 | |||||
IQR | 10.1, 12.9 | 10.3, 12.6 | 11,13 | |||||
Absolute lymphocyte count (K/μL)a,b | Mean | 1.2 | 1.2 | 83.8 | 1.3 | 23 | 0.59 | 0.40 |
SD | 1.3 | 0.74 | 0.50 | |||||
Median | 1.0 | 1.2 | 1.5 | |||||
IQR | 0.6, 1.5 | 0.8, 1.6 | 1.0, 2.0 | |||||
Senior surgeon’s estimate of survival (months)a,b | Mean | 10.3 | N/A | 100 | 11.2 | 87 | 0.56 | N/A |
SD | 8.6 | 7.0 | ||||||
Median | 6.0 | 10 | ||||||
IQR | 4.0, 12.0 | 5, 20 |