Table 5.
Overall RFS | Neck RFS | Distant RFS | ||||
---|---|---|---|---|---|---|
Characteristic | 10 years RFS (%) | p | 10 years RFS (%) | p | 10 years RFS (%) | p |
Age, years | 0.06 | 0.44 | 0.03 | |||
<45 | 93 | 95 | 99 | |||
≥45 | 71 | 83 | 88 | |||
PTC subtypes | 0.003 | 0.49 | 0.009 | |||
FVPTC | 100 | 100 | 100 | |||
Microcarcinoma | 95 | 95 | 100 | |||
Classic PTC | 91 | 93 | 98 | |||
Tall cell PTC | 76 | 89 | 88 | |||
DFS and solid variant PTC | 33 | 67 | 67 | |||
Extra-thyroid extension | 0.06 | 0.08 | 0.59 | |||
None | 97 | 100 | 97 | |||
Focal | 95 | 95 | 100 | |||
Extensive | 79 | 84 | 95 | |||
Number of metastatic nodes | 0.05 | 0.04 | 0.93 | |||
≤3 | 94 | 97 | 97 | |||
>3 | 86 | 90 | 96 | |||
Most aggressive PTC subtype in lymph nodea | 0.05 | 0.005 | 0.66 | |||
FVPTC | 100 | 100 | 100 | |||
Classic PTC | 90 | 95 | 96 | |||
Tall cell | 81 | 81 | 100 | |||
Extra-nodal extension | 0.05 | 0.09 | 0.52 | |||
No | 93 | 96 | 97 | |||
Yes | 69 | 76 | 93 |
Only classic PTC, tall cell PTC, and follicular variant PTC were included in the survival analysis.