Table 4 Log-rank analysis stratified by the number of CLNMs and primary tumor size demonstrating the risk of lateral neck recurrence
From: Risk stratification of lateral neck recurrence for patients with pN1a papillary thyroid cancer
CLNMs | Primary tumor size | 5-year lateral neck RFS | P value | |||||
|---|---|---|---|---|---|---|---|---|
CLNMs ≤ 3 | CLNMs > 3 | |||||||
Primary tumor size ≤ 1 cm | Primary tumor size 1-2 cm | Primary tumor size > 2 cm | Primary tumor size ≤ 1 cm | Primary tumor size 1-2 cm | Primary tumor size > 2 cm | |||
≤ 3 | ≤ 1 cm(n = 1007) | 98.5% | — | 0.657 | 0.001 | 0.005 | 0.000 | 0.000 |
1-2 cm(n = 662) | 98.4% | 0.657 | — | 0.006 | 0.022 | 0.000 | 0.000 | |
> 2 cm(n = 235) | 95.2% | 0.001 | 0.006 | — | 0.858 | 0.025 | 0.000 | |
> 3 | ≤ 1 cm(n = 252) | 96.9% | 0.005 | 0.022 | 0.858 | — | 0.045 | 0.000 |
1-2 cm(n = 227) | 90.0% | 0.000 | 0.000 | 0.025 | 0.045 | — | 0.005 | |
> 2 cm(n = 117) | 78.5% | 0.000 | 0.000 | 0.000 | 0.000 | 0.005 | — | |