TABLE 1.

Patient and Nodule Characteristics (n = 639)

Variable	Number (%)
Age (years)	52.0 ± 14.7
Female gender	501 (78.5)
Radiation history	26 (4.1)
Family history of thyroid cancer	92 (14.4)
Median TSH (U/mL)	1.5 ± 3.6
Taking levothyroxine	90 (14.1)
Median nodule size (cm)	2.3 ± 1.5
Cytology
Follicular neoplasm	288 (45.1)
Hurthle cell neoplasm	130 (20.3)
AUS/FLUS	121 (18.9)
Suspicious for PTC	100 (15.7)
Extent of Surgery
Lobectomy	376 (58.8)
Total thyroidectomy	263 (41.2)
Final Pathology
Total Cancers	228 (35.7)
Cancer ≥ 1 cm	158 (24.7)
Cancer < 1 cm	70 (10.9)

Data are represented as either the mean or median value ± the standard deviation for continuous variables or the number of patients with the corresponding percentage for categorical variables. U = units, mL = millimeters, cm = centimeters, AUS = atypia of undetermined significance, FLUS = follicular lesion of undetermined significance, PTC = papillary thyroid cancer