Table 1. Patient Characteristics.
| Characteristic | No. (%) |
|---|---|
| Patients | 83 |
| Age, y | |
| Mean (SD) | 54.61 (17.53) |
| Median (range) | 57.50 (21-85) |
| Sex, No. (%) | |
| Male | 47 (56.6) |
| Female | 36 (43.4) |
| Tumor depth, mm | |
| Mean (SD) | 2.93 (3.37) |
| Median (range) | 1.70 (0.8-21.0) |
| Localization of primary tumor | |
| Head/neck | 4 (4.82) |
| Trunk | 35 (42.17) |
| Upper extremity | 18 (21.69) |
| Lower extremity | 26 (31.32) |
| BMI | |
| Mean (SD) | 26.8 (5.56) |
| Normal, healthy weight | 38 (45.8) |
| Overweight | 29 (34.9) |
| Obese class I, moderate | 11 (13.3) |
| Obese class II, severe | 3 (3.6) |
| Obese class III, very severe | 2 (2.4) |
| Ulceration | 30 (36.14) |
| Localization of SLN | 169 (100) |
| Head/neck | 5 (2.96) |
| Axilla | 101 (59.75) |
| Groin | 59 (34.92) |
| Popliteal region | 4 (2.37) |
| SLN basins per patient | 83 (100) |
| 1 Localization | 58 (69.88) |
| 2 Localizations | 19 (22.89) |
| 3 Localizations | 4 (4.82) |
| 4 Localizations | 2 (2.41) |
| Excised lymph nodes | |
| SLNs per patient, mean (SD) [No. of SLNs/No. of patients] | 2.04 (1.20) [169/83] |
| SLNs per patient, median (range) | 2.00 (1-5)a |
| SLN positive, No./total No. excised (%) | 30/169 (17.75) |
| Patients with positive SLNs, No./total No. (%) | 23/88 (27.71) |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); SLN, sentinel lymph node; SLNE, SLN excision.
a
The SLNE was performed in up to 3 anatomic localizations (head and neck, axilla, and groin).