Table 1 Characterization of the population study (n = 125)
From: SOD2 immunoexpression predicts lymph node metastasis in penile cancer
| Variable | Category | N | % |
|---|---|---|---|
| Age | <50 yo | 43 | 34.4 |
| 50 – 59 yo | 41 | 32.8 | |
| ≥60 yo | 41 | 32.8 | |
| pT (TNM) | pT1a | 7 | 5.6 |
| pT1b | 4 | 3.2 | |
| pT2 | 52 | 41.6 | |
| pT3 | 57 | 45.6 | |
| pT4 | 5 | 4.0 | |
| Palpable suspicious regional lymph node | No | 64 | 51.2 |
| Yes | 59 | 47.2 | |
| Unknown | 2 | 1.6 | |
| Regional lymph node status | No metastasis | 74 | 59.2 |
| Metastasis | 44 | 35.2 | |
| Unknown | 7 | 5.6 | |
| Pattern of invasion | Pushing | 14 | 11.2 |
| Infiltrating | 101 | 80.8 | |
| Unknown | 10 | 8.0 | |
| Histological grade | Grade 1 | 15 | 12.0 |
| Grade 2 | 45 | 36.0 | |
| Grade 3 | 65 | 52.0 | |
| Perineural invasion | No | 83 | 66.4 |
| Yes | 35 | 28.0 | |
| Unknown | 7 | 5.6 | |
| Vascular invasion | No | 85 | 68.0 |
| Yes | 33 | 26.4 | |
| Unknown | 7 | 5.6 | |
| Invasion of corpora cavernous | No | 22 | 17.6 |
| Yes | 60 | 48.0 | |
| Missing data | 43 | 34.4 | |
| Invasion of corpora spongiosum | No | 4 | 3.2 |
| Yes | 88 | 70.4 | |
| Unknown | 33 | 26.4 | |
| Invasion of urethra | No | 42 | 33.6 |
| Yes | 28 | 22.4 | |
| Unknown | 55 | 44.0 | |
| Tumor depth | ≤5 mm | 21 | 16.8 |
| >5 mm | 92 | 73.6 | |
| Unknown | 12 | 9.6 | |
| HPV detection | No | 99 | 79.2 |
| Yes | 26 | 20.8 | |
| SOD2 expression | <50% | 69 | 55.2 |
| >50% | 56 | 44.8 |