Table 1.

The characteristics of PTC patients.

	Study group
Number of patients	80
Median age (upper and lower quartiles)	54 (51.41; 64.22)
Sex	M: 22
	F: 58
Menopausal status
Premenopausal	13
Postmenopausal	45
Stage (TNM)	pT1a:20
	pT1a(m):11
	pT1b: 15
	pT1b(m): 6
	pT2: 16
	pT3/pT4: 12
Patients diagnosed with angioinvasion and metastasis	56
Patients without angioinvasion and metastasis	24

F, female; M, male; (m), multifocal; p, pathological; TNM—Cancer tumor-node-metastasis classification (based on the characteristics of primary tumor site (pT)), pT1a- Tumor size ≤ 1 cm in greatest dimension limited to the thyroid, pT1b—Tumor > 1 cm but ≤ 2 cm in greatest dimension, limited to the thyroid, pT2- Tumor size > 2 cm but ≤ 4 cm, limited to the thyroid, pT3/pT4-Tumor size > 4 cm, with gross extrathyroidal extension.