Table 3.
Comparison of demographic and tumor characteristics by sex. There were no significant differences between females and males in any of the variables (p>0.05).
| Parameter | Female (n: 19) | Male (n: 5) | p |
|---|---|---|---|
| Age (year) | 44.8±18.6 | 56.6±20.2 | 0.230 |
| Tumor localization | 0.055 | ||
| Head (%) | 6 (31.6) | 3 (60.0) | |
| Body (%) | 2 (10.5) | 2 (40.0) | |
| Tail (%) | 11 (57.9) | None | |
| Tumor diameter (cm) | 6.0 (2.0–19.0) | 3.5 (1.0–17.0) | 0.265 |
| Tumor diameter group | 0.075 | ||
| <5 cm (%) | 6 (31.6) | 4 (80.0) | |
| ≥5 cm (%) | 13 (68.4) | 1 (20.0) | |
| Perineural invasion (%) | 13 (68.4) | 5 (100.0) | 0.202 |
| Capsular invasion (%) | 9 (47.4) | 3 (60.0) | 0.500 |
| Vascular invasion (%) | 1 (5.3) | None | 0.792 |
| β-cadherin (%) | 17 (89.5) | 5 (100.0) | 0.620 |
| Cytokeratin (%) | 4 (21.1) | 1 (20.0) | 0.730 |
| Synaptophysin (%) | 14 (73.7) | 3 (60.0) | 0.462 |
| Vimentin (%) | 13 (68.4) | 4 (80.0) | 0.538 |
| Chromogranin (%) | 6 (31.6) | None | 0.202 |
| NSE (%) | 13 (68.4) | 5 (100.0) | 0.202 |
| α-1 AT (%) | 13 (68.4) | 5 (100.0) | 0.202 |
| CD10 (%) | 14 (73.7) | 5 (100.0) | 0.274 |
| CD56 (%) | 17 (89.5) | 4 (80.0) | 0.521 |
| Nuclear atypia (%) | 12 (63.2) | 4 (80.0) | 0.445 |
| Ki-67 index (%) | 4.0 (0–15.0) | 5.0 (0–11.0) | 0.836 |
NSE: neuron-specific enolase; AT: antitrypsin; CD: cluster of differentiation