Table 4.
Prognostic variables in FTC in relation to OS and DFS
| Characteristics | OS (%) | P | DFS (%) | P |
|---|---|---|---|---|
| Gender | 0.822 | 0.675 | ||
| Male | 88.5 | 57.1 | ||
| Female | 90.5 | 67.3 | ||
| Patients’ age (years) | 0.253 | 0.102 | ||
| <45 | 94.1 | 73.5 | ||
| ≥45 | 84.6 | 56.4 | ||
| Primary tumor size (cm) | 0.432 | 0.017 | ||
| ≤1 | 100 | 50 | ||
| >1 and ≤2 | 80 | 80 | ||
| >2 and ≤4 | 94.1 | 76.5 | ||
| >4 | 84.4 | 50 | ||
| Lymph node status | 0.504 | 0.789 | ||
| N0 | 88.1 | 64.1 | ||
| N1 | 100 | 75 | ||
| Development of DM | <0.001 | – | – | |
| No | 98.1 | |||
| Positive | 66.7 | |||
| Extrathyroid extension | 0.16 | 0.002 | ||
| No | 90 | 67.1 | ||
| Yes | 66.7 | 0 | ||
| Multifocality | 0.94 | 0.055 | ||
| No | 97 | 47 | ||
| Yes | 94.1 | 0 | ||
| Subtypes | 0.097 | 0.41 | ||
| Classic | 92.6 | 66.7 | ||
| Hürthle cell carcinoma | 78.9 | 57.9 | ||
| Degree of invasion | 0.004 | <0.001 | ||
| Minimally invasive | 97.5 | 82.5 | ||
| Widely invasive | 78.6 | 39.3 |
FTC, follicular thyroid carcinoma; OS, overall survival; DFS, disease-free survival; DM, distant metastasis.