Table 1: Characteristics of patient population ( 𝑁 = 4 0 7 ).

CharacteristicN (%)

Age: median (range)45 years (18–80)
Gender
 Male86 (21.1)
 Female321 (78.9)
Extent of surgery
 Lobectomy27 (6.6)
 Total thyroidectomy380 (93.3)
Multifocal tumor188 (46.2)
Capsular invasion126 (31.0)
Vascular invasion14 (3.4)
Soft tissue invasion68 (16.7)
Positive surgical margin73 (17.9)
positive lymph node153 (37.6)
Tumor size > 0.8 cm132 (32.4)