Table 2.
General clinical data of patients
| Variable | Research group (n = 60) | Control group (n = 40) | t | P-value |
| Age (yr) | 0.733 | 0.392 | ||
| ≤ 50 | 23 (38.33) | (30.00) | ||
| > 50 | 37 (61.67) | 28 (70.00) | ||
| Gender | 0.000 | 1.000 | ||
| Male | 30 (50.00) | 20 (50.00) | ||
| Female | 30 (50.00) | 20 (50.00) | ||
| Tumor size (cm) | ||||
| ≤ 2 | 17 (28.33) | - | - | - |
| > 2 | 43 (71.67) | - | - | - |
| Lesion site | ||||
| Non-acral | 44 (73.33) | - | - | - |
| Acral | 16 (26.67) | - | - | - |
| TNM stage | ||||
| I | 7 (11.67) | - | - | - |
| II | 8 (13.33) | - | - | - |
| III | 25 (41.67) | - | - | - |
| IV | 20 (33.33) | - | - | - |
| Lymph node metastasis | ||||
| Yes | 45 (75.00) | - | - | - |
| No | 15 (25.00) | - | - | - |