Identification of Intermediate- to High-Risk Papillary Thyroid Carcinoma Patients Who May Be Safely Managed without the Performance of Delayed Stimulated Thyroglobulin Measurements following Total Thyroidectomy and Radioactive Iodine Therapy

Table 2

Preoperative factors for predicting detectable sTg in the 1-year follow-up.

Parameters	Undetectable sTg; (, 84.7%)	Detectable sTg; (, 15.3%)	value
Age (≥45), (%)	169 (57.6%)	18 (34.0%)	0.001
Male, (%)	54 (18.4%)	9 (17.0%)	0.801
Free T4 (ng/mL), mean (range)	1.27 (0.75–2.31)	1.34 (0.91–2.96)	0.248
TSH (mIU/L), mean (range)	1.90 (0.03–182.00)	1.81 (0.07–6.83)	0.852
Anti-TPO Ab (IU/mL), (%)	42 (14.3%)	3 (5.6%)	0.085
Anti-Tg Ab (IU/mL), (%)	55 (18.8%)	6 (11.3%)	0.190
Tg (ng/mL), median (range)	12.62 (0.05–405.40)	33.60 (0.74–696.52)	<0.001
19.4>, (%)	184 (91.1%)	18 (8.9%)	<0.001
19.4≤, (%)	109 (75.7%)	35 (24.3%)