Table 5. Risk scores and percentage of central lymph node metastasis in PTC patient.
| Risk score | CLNM (+) | CLNM (−) | Total | Positive rate |
|---|---|---|---|---|
| 0 | 0 | 4 | 4 | 0.0% |
| 1 | 0 | 3 | 3 | 0.0% |
| 2 | 0 | 5 | 5 | 0.0% |
| 3 | 0 | 5 | 5 | 0.0% |
| 4 | 1 | 13 | 14 | 7.1% |
| 5 | 0 | 10 | 10 | 0.0% |
| 6 | 0 | 18 | 18 | 0.0% |
| 7 | 4 | 23 | 27 | 14.8% |
| 8 | 3 | 36 | 39 | 7.7% |
| 9 | 4 | 29 | 33 | 12.1% |
| 10 | 7 | 29 | 36 | 19.4% |
| 11 | 9 | 19 | 28 | 32.1% |
| 12 | 20 | 21 | 41 | 48.8% |
| 13 | 23 | 22 | 45 | 51.1% |
| 14 | 33 | 10 | 43 | 76.7% |
| 15 | 25 | 12 | 37 | 67.6% |
| 16 | 49 | 3 | 52 | 94.2% |
| 17 | 43 | 6 | 49 | 87.8% |
| 18 | 18 | 0 | 18 | 100.0% |
| 19 | 17 | 1 | 18 | 94.4% |
| 20 | 35 | 1 | 36 | 97.2% |
| 21 | 10 | 0 | 10 | 100% |
| 22 | 4 | 0 | 4 | 100% |
| 23 | 5 | 0 | 5 | 100% |
| 24 | 2 | 0 | 2 | 100% |
PTC, papillary thyroid carcinoma; CLNM, central lymph node metastasis.