Performance of the American Thyroid Association Risk Classification in a Single Center Cohort of Pediatric Patients with Differentiated Thyroid Cancer: A Retrospective Study

Table 3

Clinical course and final outcomes in relation to pediatric ATA risk classification.

	Pediatric ATA Risk Classification
	Low; (n=25, 61%)	Intermediate; (n=4, 10%)	High; (n=12, 29%)
Follow-up duration (years)	7.34	7.34	7.34
Course during Initial follow-up^a
Persistent Disease (n=11)	2 (8%)	2 (50%)	7 (58%)
Disease Free (n=26)	20 (80%)	2 (50%)	4 (33%)
Disease Free followed by Recurrence (n=4)	3 (12%)	0 (0%)	1 (8%)
Status At Last Visit^b
Disease Free (n=33)	22 (88%)	3 (75%)	8 (67%)
Persistent Disease (n=8)	3 (12%)	1 (25%)	4 (33%)

Data are presented as median [range] or n (%).
^aP<0.01 for course during initial follow-up (Persistent Disease versus Disease Free [including Disease Free followed by Recurrence], Chi square).
=0.3 for status at last visit.