Research Article
Prediction of Cervical Lymph Nodes Metastasis in Papillary Thyroid Carcinoma (PTC) Using Nodal Staging Score (NSS)
Table 4
Number of lymph nodes examined corresponding to NSS values.
| The number of lymph nodes examined | NSS (%) | 1 | 5 | 10 | 15 | 20 | 25 |
| Gender | | | | | | | Male | 40.0 | 74.7 | 87.6 | 92.4 | 94.8 | 96.0 | Female | 66.5 | 89.8 | 95.5 | 97.3 | 98.2 | 98.7 | Age | | | | | | | ≤45 | 57.4 | 85.6 | 93.4 | 96.1 | 97.4 | 98.1 | >45 | 66.5 | 89.8 | 95.5 | 97.3 | 98.2 | 98.6 | Extrathyroidal invasion | | | | | | | Negative | 70.2 | 91.3 | 96.1 | 97.7 | 98.5 | 98.9 | Positive | 19.4 | 51.7 | 71.9 | 81.6 | 88.3 | 91.8 | Multifocal | | | | | | | No | 60.0 | 86.9 | 94.1 | 96.5 | 97.6 | 98.3 | Yes | 64.2 | 88.8 | 95.0 | 97.1 | 98.0 | 98.5 | Tumor size | | | | | | | ≤1 cm | 77.4 | 93.9 | 97.4 | 98.5 | 99.0 | 99.2 | 1-2 cm | 61.5 | 87.7 | 94.5 | 96.7 | 97.8 | 98.3 | 2-4 cm | 51.2 | 82.3 | 91.8 | 95.1 | 96.9 | 97.4 | > 4 cm | 42.1 | 76.4 | 88.6 | 93.1 | 95.0 | 95.9 | T stage | | | | | | | T1 | 75.9 | 93.3 | 97.1 | 98.3 | 98.9 | 99.2 | T2 | 62.3 | 88.0 | 94.6 | 96.8 | 97.5 | 98.0 | T3 | 34.4 | 69.9 | 84.7 | 90.6 | 93.3 | 95.0 | T4 | 9.4 | 31.6 | 49.0 | 65.6 | 73.3 | 80.0 |
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