Table 2.

Association between ATA risk groups and the revaluation between 12 and 24 months of follow-up.

ATA risk group/reavaluation betwwen 12 and 24 months	SED (n  = 6)	BED (n  = 3)	Indeterminate (n  = 5)	NED (n  = 17)
ATA intermediate risk (n  = 21)	4 (19.0%)	4 (19.0%)	2 (9.5%)	11 (52.5%)
ATA high risk (n  = 12)	4 (33.3%)	3 (25.0%)	2 (16.7%)	3 (25.0%)

ATA, American Thyroid Association; BED, biochemical evidence of disease; NED, no biochemical or structural evidence of disease; SED, structural or functional evidence of loco-regional or distant metastases.