Table 3.
Multivariate Cox Regression Analysis for the Radiomic+Clinical Model, Dosiomic+Clinical Model and Radiomic+Dosiomic+Clinical Model respectively.
| HR (95% CI) | z | P value | |
|---|---|---|---|
| Radiomic+Clinical Model (AIC, 148.46; C-index, 0.783; 95% CI, 0.734–0.832) | |||
| RPC0 | 1.11 (1.04-1.19) | 3.24 | <0.01 |
| gender | 0.56 (0.16-2.01) | -0.89 | 0.37 |
| age | 0.92 (0.84-1.01) | -1.83 | 0.07 |
| total_stage_IVB | 0.36 (0.11-1.25) | -1.60 | 0.11 |
| Peripheral invasion | 1.69 (0.55-5.14) | 0.92 | 0.36 |
| Dosiomic+Clinical Model (AIC, 146.63; C-index, 0.782; 95% CI, 0.730–0.833) | |||
| DPC0 | 1.07 (1.03-1.11) | 3.19 | <0.01 |
| DPC3 | 0.7 (0.54-0.91) | -2.64 | 0.01 |
| gender | 0.98 (0.24-4.06) | -0.03 | 0.98 |
| age | 0.94 (0.86-1.03) | -1.32 | 0.19 |
| total_stage_IVB | 0.4 (0.11-1.49) | -1.36 | 0.17 |
| Peripheral invasion | 1.83 (0.58-5.75) | 1.04 | 0.30 |
| Radiomic+Dosiomic+Clinical Model (AIC, 143.65; C-index, 0.815; 95% CI, 0.770-0.859) | |||
| RPC0 | 1.09 (1.01-1.18) | 2.15 | 0.03 |
| DPC0 | 1.04 (0.99-1.08) | 1.47 | 0.14 |
| DPC3 | 0.7 (0.53-0.93) | -2.47 | 0.01 |
| gender | 0.62 (0.16-2.41) | -0.69 | 0.49 |
| age | 0.91 (0.82-1.01) | -1.76 | 0.08 |
| total_stage_IVB | 0.24 (0.06-0.97) | -2.01 | 0.04 |
| Peripheral invasion | 2.29 (0.73-7.15) | 1.43 | 0.15 |
HR, hazard ratio; CI, confidence interval; RPC, Radiomic Principal Component; DPC, Dosiomic Principal Component; RPCn, DPCn, The nth RPC and DPC obtained by principal component analysis and ranked by weight respectively.