Table 2 Correlation between APOE expression and clinicopathological features in patients with PTC (n = 100)
Characteristic | n | APOE | P value | |
|---|---|---|---|---|
High expression (%) | Low expression (%) | |||
Gender | ||||
 Male | 33 | 18 (54.5) | 15 (45.5) | 0.619 |
 Female | 67 | 33 (49.3) | 34 (50.7) |  |
Age (Years) | ||||
  < 55 | 41 | 19 (46.3) | 22 (53.7) | 0.437 |
  ≥ 55 | 59 | 32 (54.2) | 27 (45.8) |  |
Tumor size (cm) | ||||
  < 2 | 47 | 17 (36.2) | 30 (63.8) | 0.005* |
  ≥ 2 | 53 | 34 (64.2) | 19 (35.8) |  |
Extrathyroidal invasion | ||||
 Yes | 33 | 22 (66.7) | 11 (33.3) | 0.028* |
 No | 67 | 29 (43.3) | 38 (56.7) |  |
Lymph node metastasis | ||||
 Yes | 72 | 40 (55.6) | 32 (44.4) | 0.144 |
 No | 28 | 11 (39.3) | 17 (60.7) |  |
TNM stage | ||||
 I-II | 85 | 43 (50.6) | 42 (49.4) | 0.854 |
 III-IV | 15 | 8 (53.3) | 7 (46.7) |  |