Table 3.
Weighted Percent Distribution Facility, Lymph Node Technique and Nodal Status by Tumor Depth and Year of Diagnosis for Non-distant Skin Melanoma
| 1995 | 1996 | 2001 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tumor Depth | ≤0.69 | 0.70- 1.00 |
1.01- 9.90 |
Unk | ≤0.69 | 0.70- 1.00 |
1.01 9.90 |
Unk | ≤0.69 | 0.70- 1.00 |
1.01- 9.90 |
Unk |
| Number of cases | 106 | 40 | 93 | 24 | 310 | 111 | 269 | 62 | 305 | 123 | 238 | 54 |
| Technique of Lymph Node Dissection | ||||||||||||
| No LND | 96.4 | 90.0 | 64.0 | 81.3 | 98.0 | 84.6 | 53.8 | 80.8 | 90.8 | 50 | 22.7 | 76.4 |
| Traditional | 1.6 | 3.7 | 14.5 | 6.9 | 1.1 | 7.5 | 14.3 | 10.1 | 0.6 | 4.5 | 9.2 | 2.0 |
| Any Sentinel | 1.6 | 6.3 | 16.2 | 4.3 | 0.6 | 7.8 | 30.0 | 5.8 | 8.3 | 42.4 | 64.5 | 19.6 |
| Unknown | 0.4 | 0 | 5.3 | 7.5 | 0.3 | 0 | 1.9 | 3.4 | 0.2 | 3 | 3.6 | 2.1 |
| Nodal Status | ||||||||||||
| None Examined | 96.4 | 90.0 | 64.0 | 81.3 | 98.0 | 84.6 | 53.8 | 80.8 | 90.8 | 50.0 | 22.7 | 76.4 |
| All negative | 1.6 | 10.0 | 26.0 | 11.2 | 1.3 | 13.3 | 38.4 | 10.1 | 9.2 | 46.7 | 62.9 | 11.7 |
| Any positive | 2.0 | 0 | 10 | 7.5 | 0.7 | 2.1 | 7.4 | 7.2 | 0 | 3.3 | 14.5 | 12 |
| Unknown | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 1.9 | 0 | 0 | 0 | 0 |
| Margin Status | ||||||||||||
| ≤ 1.0 cm | 36.9 | 54.8 | 14.9 | 36.2 | 44.8 | 37 | 19.6 | 20.1 | 36.7 | 26.4 | 10.7 | 20.3 |
| >1.0 - 2.0 cm | 10.9 | 2.4 | 28.4 | 23.2 | 9.6 | 23.8 | 29.6 | 11.4 | 12.8 | 22 | 28.6 | 6.2 |
| >2.0 cm | 3.0 | 10.4 | 10.6 | 14.1 | 10.6 | 18.4 | 15.6 | 14.5 | 2.6 | 6.0 | 12.8 | 1.3 |
| Margins clear, NOS |
0 | 0 | 0 | 0 | 3.2 | 4.4 | 3.1 | 0.8 | 31.4 | 30.4 | 34.9 | 33.3 |
| Tumor at margin | 4.7 | 2.1 | 1.7 | 0 | 1.7 | 1.7 | 1.9 | 6.6 | 1.6 | 3.1 | 3.6 | 4.6 |
| Not stated/ Unknown |
44.5 | 30.3 | 44.4 | 26.5 | 30.0 | 14.7 | 30.3 | 46.5 | 15.0 | 12.2 | 9.3 | 34.2 |