Table 1.

Demographic Characteristics of Study Cohort, 462 Patients with Thyroid Nodules and Fine Needle Aspiration Biopsy Suspicious Cytological Diagnosis

Female	69%
Age (years, mean±standard deviation)	53.7±15.2
History of radiation exposure to head/neck	5.4%
Patients with multiple nodules	65%
Mean nodule size by ultrasonography (cm)	2.8±1.7
Proportion of patients on thyroid hormone therapy	19.5%