Table 1. Association of CRP and SCC-Ag levels at the time of recurrence (N = 100).
| CRP | SCC-Ag | |||||
| Recurrence staging | Negative [n (%)] | Positive [n (%)] | P value | Negative [n (%)] | Positive [n (%)] | P value |
| Recurrent tumor stage | ||||||
| I (n = 11) | 10 (90.9) | 1 (9.1) | <0.001 | 10 (90.9) | 1 (9.1) | <0.001 * |
| II (n = 11) | 7 (63.6) | 4 (36.4) | 11 (100.0) | 0 (0.0) | ||
| III (n = 7) | 6 (85.7) | 1 (14.3) | 7 (100.0) | 0 (0.0) | ||
| IVa (n = 39) | 18 (46.2) | 21 (53.8) | 29 (74.4) | 10 (25.6) | ||
| IVb (n = 4) | 3 (75.0) | 1 (25.0) | 3 (75.0) | 1 (25.0) | ||
| IVc (n = 28) | 6 (21.4) | 22 (78.6) | 10 (35.7) | 18 (64.3) | ||
| Recurrent primary tumor status | ||||||
| T0 (n = 38) | 13 (34.2) | 25 (65.8) | 0.026 | 20 (52.6) | 18 (47.4) | 0.050 |
| T1 (n = 11) | 10 (90.9) | 1 (9.1) | 10 (90.9) | 1 (9.1) | ||
| T2 (n = 14) | 9 (64.3) | 5 (35.7) | 12 (85.7) | 2 (14.3) | ||
| T3 (n = 3) | 2 (66.7) | 1 (33.3) | 3 (100.0) | 0 (0.0) | ||
| T4a (n = 28) | 13 (46.4) | 15 (53.6) | 21 (75.0) | 7 (25.0) | ||
| T4b (n = 6) | 3 (50.0) | 3 (50.0) | 4 (66.7) | 2 (33.3) | ||
| Recurrent nodal status | ||||||
| N0 (n = 63) | 34 (54.0) | 29 (46.0) | 0.014 | 49 (77.8) | 14 (22.2) | 0.007 |
| N1 (n = 5) | 5 (100.0) | 0 (0.0) | 5 (100.0) | 0 (0.0) | ||
| N2 (n = 32) | 11 (34.4) | 21 (65.6) | 16 (50.0) | 16 (50.0) | ||
| Distant metastasis | ||||||
| No (n = 72) | 44 (61.1) | 28 (38.9) | <0.001 | 60 (83.3) | 12 (16.7) | <0.001 |
| Yes (n = 28) | 6 (21.4) | 22 (78.6) | 10 (35.7) | 18 (64.3) | ||
*Fisher's exact test.