Table.

Summary of Follow-up Information for Patients in the Study Groups

Characteristic	Group 1 (Noninvasive EFVPTC) (n = 109)	Group 2 (Invasive EFVPTC) (n = 101)
Age, mean (range), y	45.9 (21–81)	42.8 (8–78)
Sex, No. (%)
Female	91 (83)	71 (70)
Male	18 (17)	30 (30)
Tumor size, mean (range), cm	3.1 (1.1–9.0)	2.5 (0.6–5.5)
Extent of surgery
Lobectomy	67	15
Total thyroidectomy	42	86
Follow-up, y
Mean (range)	14.4 (10–26)	5.6 (1–18)
Median	13.0	3.5
Adverse events during follow-up, No. (%)	0	12 (12)