Efficacy and Safety of Single-Session Radiofrequency Ablation in Treating Benign Thyroid Nodules: A Short-Term Prospective Cohort Study

Table 4

Factors independently predictive of volume reduction via multiple linear regression analysis.

Variable	B	95% CI of B
		Lower	Upper
(Constant)	9.03	−52.41	70.47	0.76
Age	0.29	−0.1	0.69	0.135
Sex	−16.09	−39.59	7.41	0.17
Internal component of the nodule	23.00	7.59	38.45	0.005
TSH	−7.76	−16.25	0.71	0.07
FT4	14.28	−12.66	41.27	0.28
Cosmetic	−2.12	−11.75	7.5	0.65
Symptom	−0.117	−3.39	0.16	0.94
Ablation time	0.819	−0.701	2.33	0.278
Volume lidocaine 2%	0.823	−1.108	2.75	0.38
Min RF power	0.506	−2.38	3.39	0.72
Max RF power	−0.385	−1.57	0.806	0.511
Largest diameter	0.016	−1.57	1.61	0.98
Initial volume	−1.96	−5.659	1.729	0.284