Table 2.
Sociodemographic and clinical melanoma characteristics by prevalent tumor status.
| Variable | Overall dataset (n = 2978) |
Prevalent tumors | p-value | |
|---|---|---|---|---|
| Absent (n = 2844) | Present (n = 134) | |||
| Sex | 0.001a | |||
| Female | 42.5% (1267) | 1229 (43.2%) | 38 (28.4%) | |
| Male | 57.5% (1711) | 1615 (56.8%) | 96 (71.6%) | |
| Age | <0.001b | |||
| Median[IQR] | 63.0 [51.0;75.0] | 62.0 [51.0;74.0] | 73.5 [65.0;81.0] | |
| Mean(std) | 62.6 (15.4) | 62.2 (15.4) | 71.7 (11.2) | |
| Age groups | <0.001a | |||
| <45 | 12.7% (377) | 375 (13.2%) | 2 (1.5%) | |
| 45-54 | 19.0% (567) | 560 (19.7%) | 7 (5.2%) | |
| 55-64 | 20.9% (623) | 600 (21.1%) | 23 (17.2%) | |
| 65-74 | 22.1% (657) | 619 (21.8%) | 38 (28.4%) | |
| 75-84 | 18.8% (560) | 509 (17.9%) | 51 (38.1%) | |
| >84 | 6.5% (194) | 181 (6.4%) | 13 (9.7%) | |
| Breslow | 0.232a | |||
| < 0.76 mm | 55.5% (1564) | 1505 (55.8%) | 59 (48.0%) | |
| 0.76 – 1.75 mm | 21.6% (608) | 577 (21.4%) | 31 (25.2%) | |
| > 1.75 mm | 23.0% (648) | 615 (22.8%) | 33 (26.8%) | |
| Missing | 158 | 147 | 11 | |
| Numerical Breslow | 0.095b | |||
| Median[IQR] | 0.7 [0.4;1.6] | 0.6 [0.4;1.6] | 0.8 [0.4;2.0] | |
| Mean(std) | 1.7 (3.0) | 1.7 (3.0) | 1.8 (2.3) | |
| Missing | 158 | 147 | 11 | |
| Ulcerations | 0.460a | |||
| Absent | 80.2% (2265) | 2168 (80.3%) | 97 (77.6%) | |
| Present | 19.8% (560) | 532 (19.7%) | 28 (22.4%) | |
| Missing | 153 | 144 | 9 | |
| T | 0.074c | |||
| T0 | 1.3% (38) | 33 (1.2%) | 5 (3.9%) | |
| T1 | 64.8% (1874) | 1800 (65.2%) | 74 (57.4%) | |
| T2 | 13.1% (379) | 361 (13.1%) | 18 (14.0%) | |
| T3 | 10.6% (306) | 289 (10.5%) | 17 (13.2%) | |
| T4 | 10.1% (293) | 278 (10.1%) | 15 (11.6%) | |
| Missing | 88 | 83 | 5 | |
| N | 0.294c | |||
| N0 | 88.4% (2426) | 2328 (88.7%) | 98 (83.8%) | |
| N1 | 7.4% (202) | 190 (7.2%) | 12 (10.3%) | |
| N2 | 2.9% (79) | 74 (2.8%) | 5 (4.3%) | |
| N3 | 1.3% (36) | 34 (1.3%) | 2 (1.7%) | |
| Missing | 235 | 218 | 17 | |
| M | 0.521c | |||
| M0 | 95.7% (2733) | 2611 (95.7%) | 122 (94.6%) | |
| M1 | 4.3% (123) | 116 (4.3%) | 7 (5.4%) | |
| Missing | 122 | 117 | 5 | |
| TNM stage | 0.180a | |||
| I | 72.5% (2080) | 1996 (72.9%) | 84 (64.1%) | |
| II | 13.8% (396) | 372 (13.6%) | 24 (18.3%) | |
| III | 9.3% (267) | 251 (9.2%) | 16 (12.2%) | |
| IV | 4.4% (126) | 119 (4.3%) | 7 (5.3%) | |
| Missing | 109 | 106 | 3 | |
| Tumor’s histologic type | 0.491c | |||
| Superficial spreading melanoma | 53.8% (1596) | 1530 (54.0%) | 66 (50.0%) | |
| Malignant melanoma | 29.0% (861) | 823 (29.1%) | 38 (28.8%) | |
| Nodular melanoma | 11.2% (333) | 314 (11.1%) | 19 (14.4%) | |
| Lentigo maligna | 2.3% (69) | 67 (2.4%) | 2 (1.5%) | |
| Acral-lentiginous melanoma | 1.2% (35) | 32 (1.1%) | 3 (2.3%) | |
| Spitzoid melanoma | 0.9% (26) | 25 (0.9%) | 1 (0.8%) | |
| Melanoma arising from blue naevus | 0.8% (25) | 24 (0.8%) | 1 (0.8%) | |
| Desmoplastic melanoma | 0.7% (20) | 18 (0.6%) | 2 (1.5%) | |
| Missing | 13 | 11 | 2 | |
| Tumor’s site | 0.617c | |||
| Trunk | 48.7% (1420) | 1359 (48.8%) | 61 (48.4%) | |
| Lower limbs | 21.9% (639) | 615 (22.1%) | 24 (19.0%) | |
| Upper limbs | 16.7% (486) | 460 (16.5%) | 26 (20.6%) | |
| Head and neck | 12.6% (368) | 353 (12.7%) | 15 (11.9%) | |
| Missing | 65 | 57 | 8 | |
aPearson’s Chi-squared test, bMann-Whitney test, cFisher’s Exact Test for Count Data.