Table 2.
Tumor and treatment characteristics of RCC patients by receipt of renal mass biopsy.
| Characteristic | RMB + | RMB − | χ2 P value |
|---|---|---|---|
| Tumor Size (cm): | |||
| No mass | 3 (0.1) | 7 (0.0) | P<0.0001 |
| ≤ 4 | 1,673 (32.7) | 6,235 (31.8) | |
| 4 – 7 | 1,452 (28.4) | 6,297 (32.1) | |
| 7 – 10 | 917 (17.9) | 3,766 (19.2) | |
| ≥ 10 | 437 (8.6) | 1,694 (8.7) | |
| Unknown | 630 (12.3) | 1,591 (8.1) | |
| Tumor Stage: | |||
| Localized | 2,804 (54.9) | 12,318 (62.9) | P<0.0001 |
| Regional | 802 (15.7) | 3,842 (19.6) | |
| Distant | 1,506 (29.5) | 3,430 (17.5) | |
| Treatment Type: | |||
| Surgery | 3,192 (62.4) | 14,489 (74.0) | P<0.0001 |
| Systemic Therapy | 201 (3.9) | 198 (1.0) | |
| Systemic Therapy + Surgery | 155 (3.0) | 355 (1.8) | |
| None | 1,564 (30.6) | 4,548 (23.2) | |
| Surgical Type: | |||
| Radical nephrectomy | 2,702 (52.9) | 12,964 (66.2) | P<0.0001 |
| Partial nephrectomy | 452 (8.8) | 1,759 (9.0) | |
| Ablation | 193 (3.8) | 121 (0.6) | |
| None | 1,765 (34.5) | 4,746 (24.2) | |