Table 3 Baseline characteristics of patients between the recurrence and non-recurrence groups
Characteristic | Non-recurrence group | Recurrence group | χ 2/t | P |
|---|---|---|---|---|
(n = 237) | (n = 75) | |||
Gender | ||||
 Male | 67 (28.3) | 24 (32.0) | 0.69 | 0.467 |
 Female | 170 (71.7) | 51 (68.0) |  |  |
 Mean age (years) | 42.58 ± 8.40 | 45.04 ± 10.53 | 1.26 | 0.211 |
Pathological type | ||||
 Papillary thyroid carcinoma | 220 (92.8) | 41 (54.7) | 72.13 | <0.0001 |
 Follicular thyroid carcinoma | 10 (4.2) | 7 (9.3) |  |  |
 Medullary thyroid carcinoma | 5 (2.1) | 10 (13.3) |  |  |
 Undifferentiated carcinoma | 2 (0.8) | 17 (22.7) |  |  |
Tumor stage | ||||
 I | 174 (73.4) | 10 (13.3) | 98.67 | < 0.0001 |
 II | 25 (10.5) | 20 (26.7) |  |  |
 III | 35 (14.8) | 29 (38.7) |  |  |
 IV | 3 (1.3) | 16 (21.3) |  |  |