TABLE 2.
Hazard ratios (95% CI), along with scoring system points, based on the final Cox model. The risk score for a given patient is obtained by summing the points for each risk factor.
| Risk factors | Hazard ratio a (95% CI) | Points assigned |
|---|---|---|
| Age (years) | 1.01 (1.00–1.02) | Age × 0.21 |
| Sex | ||
| Female | Reference | +0 |
| Male | 1.04 (0.84–1.29) | +1 |
| Ulceration | ||
| Absent | Reference | +0 |
| Present | 1.51 (1.20–1.90) | +8 |
| Unknown | 2.05 (1.48–2.85) | +14 |
| Primary site | ||
| Extremity | Reference | +0 |
| Head/neck | 1.64 (1.28–2.10) | +10 |
| Trunk | 1.13 (0.89–1.43) | +2 |
| Breslow (mm) | 1.89 (1.72–2.07) | log2 (Breslow) × 12.8 + 49.0 |
a
Hazard ratio, the exponential of the coefficients of Age (year), Sex, Ulceration, Primary Site, and log2(Breslow) in the Cox model.