Table 7.
Baseline characteristics according to lymph node ratio group.
| Variables | LNR < 0.20 (n = 79) |
LNR ≥ 0.20 (n = 53) |
p |
|---|---|---|---|
| Age (mean ± SD) | 50.67 (12.70) | 48.30 (15.60) | 0.340 |
| Sex, men (%) | 23 (29.1) | 23 (43.4) | 0.133 |
| Size, cm (mean ± SD) | 1.72 (1.08) | 2.38 (1.68) | <0.001 |
| Gross extrathyroidal extension, number (%) | 4 (5.1) | 21 (39.6) | 0.007 |
| Bilaterality, number (%) | 13 (16.5) | 9 (17.0) | 1.000 |
| N stage | <0.001 | ||
| 0 | 49 (62.0) | 0 (0.00 | |
| 1a | 14 (17.7) | 9 (17.0) | |
| 1b | 16 (20.3) | 44 (83.0) | |
| Postoperative calcitonin ≥ 5pg/mL | 23 (29.1) | 51 (96.2) | <0.001 |
SD, standard deviation; LNR, metastatic lymph node ratio.