Table 4.
Clinicopathological characteristics of patients with RCC with and without recurrence
| Variables | With recurrence (n = 5) | Without recurrence (n = 118) | P-value |
|---|---|---|---|
| Sex (Male/Female) | 5/0 | 95/23 | 0.3484 |
| Age (years); median (IQR) | 65 (60–72) | 64 (53–70) | 0.5642 |
| Age (≦60 vs 60 < years) | 1/4 | 50/68 | 0.4017 |
| BMI (kg/m2); median (IQR) | 24.5 (21.5–28.3) | 24.1 (21.2–26.7) | 0.8177 |
| ECOG PS (0/≥1) | 5/0 | 111/7 | 1.0000 |
| Charlson comorbidity index (0/≥1) | 5/0 | 94/24 | 1.0000 |
| Tumor size (mm); median (IQR) | 30 (20–36) | 26 (20–33) | 0.5766 |
| Tumor size (≦ 2 cm vs > 2 cm) | 1/4 | 25/93 | 1.0000 |
| Tumor location | |||
| Right/Left | 3/2 | 51/67 | 0.3849 |
| Posterior/anterior | 4/1 | 45/73 | 0.0814 |
| Lateral/Medial | 3/2 | 73/45 | 0.7163 |
| Exophytic/Endophytic | 5/0 | 111/7 | 1.0000 |
| Tumor shape (Round/Non-round) | 1/4 | 54/64 | 0.3790 |
| Homogeneity/ Heterogeneity | 0/5 | 26/92 | 0.2983 |
| CV (+/−) | 5/0 | 51/67 | *0.0177 |
| Surgical method (Partial/Radical) | 5/0 | 103/15 | 0.5159 |
| Histological type (CCC/non-CCC) | 5/0 | 100/18 | 0.4469 |
| pT stage (1a/ 3a) | 4/1 | 105/13 | 0.4593 |
| Fuhrman grade (1,2/ 3,4) | 3/2 | 95/23 | 0.2678 |
| INF (α/β,γ) | 2/3 | 88/30 | 0.1193 |
| Central necrosis (+/−) | 1/4 | 25/93 | 0.7017 |
| MVI (+/−) | 3/2 | 50/68 | 0.3700 |
| Surgical margin (+/−) | 0/5 | 3/115 | 1.0000 |
IQR Interquartile range, BMI Body mass index, ECOG PS Eastern Cooperative Oncology Group Performance Status, CV Collateral vessel, CCC Clear cell carcinoma, INF Infiltrative growth, MVI microvascular invasion *p < 0.05