Subgroup survival analysis
| Variables | n | Univariate HR (95% CI, p value) | Multivariate HR (95% CI, p value) | |
| State | NSW+ACT | 1656 | 1 | 1 |
| QLD | 955 | 1.08 (0.93 to 1.26, p=0.314) | 1.07 (0.91 to 1.25, p=0.410) | |
| SA | 535 | 0.94 (0.77 to 1.14, p=0.506) | 1.05 (0.86 to 1.29, p=0.632) | |
| TAS | 99 | 1.45 (1.02 to 2.06, p=0.040) | 1.43 (1.00 to 2.04, p=0.00.05) | |
| VIC | 1066 | 0.69 (0.58 to 0.82, p<0.001) | 0.73 (0.61 to 0.87, p<0.001) | |
| WA | 406 | 1.33 (1.10 to 1.61, p=0.004) | 1.37 (1.13 to 1.71, p=0.001) | |
| Age | <60 | 1989 | 1 | 1 |
| ≥60 | 2728 | 1.68 (1.49 to 1.89, p<0.001) | 1.70 (1.51 to 1.92, p<0.001) | |
| Sex | Female | 2239 | 1 | 1 |
| Male | 2478 | 1.00 (0.89 to 1.12, p=0.997) | 1.01 (0.90 to 1.13, p=0.863) | |
| Histology | 8720—Melanoma, NOS | 3144 | 1 | 1 |
| 8770—Mixed cell | 536 | 2.07 (1.77 to 2.41, p<0.001) | 2.00 (1.71 to 2.35, p<0.001) | |
| 8771—Epithelioid cell | 127 | 2.51 (1.89 to 3.33, p<0.001) | 2.30 (1.72 to 3.07, p<0.001) | |
| 8772—Spindle cell, NOS | 291 | 1.05 (0.82 to 1.33, p=0.717) | 1.06 (0.83 to 1.36, p=0.640) | |
| 8773—Spindle A cell | 58 | 0.42 (0.20 to 0.88, p=0.021) | 0.39 (0.18 to 0.81, p=0.013) | |
| 8774—Spindle B cell | 561 | 1.04 (0.87 to 1.25, p=0.651) | 1.03 (0.85 to 1.24, p=0.799) |
Significant values have been bolded.
ACT, Australian Capital Territory; NOS, not otherwise specified; NSW, New South Wales; NT, Northern Territory; QLD, Queensland; SA, South Australia; TAS, Tasmania; VIC, Victoria; WA, Western Australia.