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

Table 2

Baseline characteristics of pediatric patients with papillary DTC.

Characteristic	Result
Female	34 (83%)
Male	7 (17%)
Age at Diagnosis (years)	16.2 ± 1.8
Family History of Differentiated Thyroid Cancer	3 (7%)
Previous Radiation	4 (10%)
Surgery
Total thyroidectomy	38 (93%)
Hemithyroidectomy only	3 (7%)
Lymph Node dissection
Central	5 (12%)
Lateral	6 (15%)
Central+ Lateral	4 (10%)
Mediastinal+Lateral	1 (2%)
Tumor Multifocality	15 (37%)
Tumor
>4cm	11 (28%)
≤4cm)	28 (72%)
Extrathyroidal Extension	16 (39%)
Distant metastasis	6 (15%)
Lymph Node metastasis	23 (56%)
AJCC () Stage
Stage I	35 (85%)
Stage II	6 (15%)
ATA Pediatric Risk
Low	25 (61%)
Intermediate	4 (10%)
High	12 (29%)
Follow-up period (years)	7.3
RAI ablation	36 (88%)
Initial RAI dose (GBq)	4.2 ± 1.1

Results are presented as Mean ±SD or Median [Range] unless otherwise indicated.
size was not available for 2 patients; not available for one patient who had initial treatment outside of Canada; RAI = Radioactive Iodine.