|
Factor
|
Characteristic
|
Number (%)
|
|---|
|
Gender
|
Male
|
63 (47.4)
|
| |
Female
|
70 (52.6)
|
|
Age (years)
|
≤50
|
64 (48.1)
|
| |
>50
|
69 (51.9)
|
|
Primary site
|
Lower extremity
|
94 (70.7)
|
| |
Trunk
|
31 (23.3)
|
| |
Unknown
|
8 (6)
|
|
Clark level
|
III
|
35 (28.7)
|
| |
IV
|
64 (48.1)
|
| |
V
|
13 (9.8)
|
| |
Unknown
|
10 (8.2)
|
| |
NA
|
11
|
|
T stage
|
T1
|
9 (8.1)
|
| |
T2
|
25 (22.5)
|
| |
T3
|
36 (32.4)
|
| |
T4
|
41 (36.9)
|
| |
NA
|
22
|
|
Ulceration
|
Yes
|
57 (49.6)
|
| |
No
|
58 (50.4)
|
| |
NA
|
18
|
|
Method of diagnosis
|
Clinical disease
|
84 (63.1)
|
| |
Sentinel lymph node biopsy
|
49 (36.9)
|
|
Number of positive lymph nodes
|
1 (N1)
|
84 (64.1)
|
| |
2 or 3 (N2)
|
33 (25.2)
|
| |
≥4 (N3)
|
14 (10.5)
|
| |
NA
|
2
|
|
Extent of nodal involvement
|
Superficial
|
103 (77.4)
|
| |
Superficial and deep
|
30 (22.6)
|
