| Radiogenomics dataset | Imaging test dataset 1 | Imaging test dataset 2 | |||
---|---|---|---|---|---|---|
 | HR (95% CI) | P | HR (95% CI) | P | HR (95% CI) | P |
Sex:(M vs. F) | 1.33 (0.87–2.05) | 0.17 | 1.48 (1.03–2.14) | 0.03 | 1.14 (0.5–2.65) | 0.75 |
CEA:(Abnormal vs. Normal) | 1.95 (1.29–2.96) | 0.0014 | 1.51 (1.5–2.19) | 0.025 | 1 (0.42–2.37) | 0.98 |
Tumour grade: (Low vs. Middle + High) | 1.22 (0.66–2.25) | 0.52 | 1.94 (0.94–4) | 0.07 | 1.74 (0.72–4.23) | 0.22 |
TNM stage: (I + II vs. III + IV) | 4.29 (2.5–7.38) |  < 0.001 | 2.74 (1.84–4.1) |  < 0.001 | 2.24 (0.81–6.2) | 0.12 |
Radiogenomics groups: (High risk vs. Low risk) | 1.59 (1.03–2.45) | 0.034 | 1.42 (1–2.02) | 0.05 | 2.78 (1.21–6.34) | 0.01 |