Table 5.
Subgroup analysis divided into patients with superficial and deep tumors
| Depth | Superficial | Deep | ||||
|---|---|---|---|---|---|---|
| Number of cases | 89 | 95 | ||||
| Group (number of cases) | PE (37) | UE (52) | p value | PE (87) | UE (8) | p value |
| Tumor size (cm, mean) | 7.5 | 4.7 | 0.004 | 9.6 | 4.2 | 0.001 |
| Operative duration (minutes, mean) | 334 | 274 | 0.124 | 345 | 432 | 0.545 |
| Intraoperative blood loss (mL, mean) | 238 | 148 | 0.629 | 366 | 233 | 0.480 |
| FSG or flap coverage (cases/total) | 86% (32/37) | 75% (39/52) | 0.184 | 32% (27/85) | 50% (4/8) | 0.296 |
| OS | 92% | 95% | 0.627 | 83% | 100% | 0.287 |
| MFS | 86% | 83% | 0.789 | 64% | 67% | 0.324 |
| LRFS | 82% | 91% | 0.750 | 84% | 100% | 0.334 |
PE = planned excision; UE = unplanned excision group; FSG = free skin graft; OS = overall survival at 5 years; MFS = metastasis-free survival at 5 years; LRFS = local recurrence-free survival at 5 years.