Table 2 The correlation of CTC counts with pathological features of patients before surgery
From: Clinical significance of circulating tumour cells and Ki-67 in renal cell carcinoma
Pathological features | Cases (n = 41) | CTC counts (M ± SD) | P value | CTCs, n (%) | P value | |
|---|---|---|---|---|---|---|
Negative (n = 7) | Positive (n = 34) | |||||
 Tumour size |  |  | 0.018* |  |  | 0.512 |
  < 5 cm | 24 | 7.13 ± 7.67 |  | 4 (16.7) | 20 (83.3) |  |
  ≥ 5 cm | 17 | 17.12 ± 16.94 |  | 3 (17.6) | 14 (82.4) |  |
 T-staging |  |  | 0.621 |  |  | 0.433 |
  T1-2 | 36 | 12.06 ± 14.08 |  | 7 (19.4) | 29 (80.6) |  |
  T3-4 | 5 | 9.50 ± 6.37 |  | 0 (0.0) | 5 (100.0) |  |
 N-staging |  |  | 0.089 |  |  | 0.614 |
  N0 | 38 | 11.92 ± 13.34 |  | 7 (18.4) | 31 (71.6) |  |
  N1 | 3 | 7.00 ± 3.00 |  | 0 (0.0) | 3 (100.0) |  |
 M-staging |  |  | 0.354 |  |  | 0.517 |
  M0 | 37 | 11.70 ± 13.38 |  | 7(18.9) | 30(71.1) |  |
  M1 | 4 | 10.25 ± 8.66 |  | 0 (0.0) | 4 (100.0) |  |
 AJCC staging |  |  | 0.943 |  |  | 0.202 |
  I | 29 | 11.75 ± 14.36 |  | 7 (24.1) | 22 (75.9) |  |
  II | 4 | 14.25 ± 13.52 |  | 0 (0.0) | 4 (100.0) |  |
  III | 4 | 8.75 ± 4.27 |  | 0 (0.0) | 4 (100.0) |  |
  IV | 4 | 10.25 ± 8.66 |  | 0 (0.0) | 4 (100.0) |  |