TABLE II.
Cox Model for Overall Survival (n = 592 Patients With Complete Data)
| Prognostic variables | Relative risk of death | P |
|---|---|---|
| Age (years) | ||
| <3 | 1 | |
| 3+ | 1.7 (1.2–2.4) | 0.002 |
| T status | ||
| T1 | 1 | |
| T2 | 1.4 (1.1–2) | 0.02 |
| Tumor size | ||
| <5cm | NS | |
| >5cm | ||
| Site of the Primary Tumour | ||
| Hand and foot | NS | |
| Other | ||
| Lymph Node involvement | 1 | |
| No | 1.4 (1–1.9) | 0.04 |
| Yes | ||
| Initial surgery | ||
| Complete | 1 | |
| Micro residue | 1.5 (0.9–2.3) | |
| Macro residue | 2.3 (1.5–3.6) | 0.001 |
| Initial radiation | ||
| No | ||
| Yes | NS | |
| Cooperative groups | ||
| COG | 1 | |
| Europe | 1.6 (1.2–2.2) | 0.001 |
| Era of treatment | ||
| 1984–1994 | 1.7 (1.3–2.3) | |
| 1995+ | 1 | 0.001 |