Table 3. Cox's Regression Analysis in Achieving Euthyroidism.

	Univariate Analysis			Multivariate Analysis
	P	Exp(β)	95% CI	P	Exp(β)	95% CI
Age (years)	0.797	1.0055	0.9644–1.0483
Sex (M:F)	0.869	1.0990	0.3595–3.3604
Family history	0.981	0.9760	0.1273–7.4829
Previous treatment history due to GD	0.287	1.8363	0.6035–5.5875
Goiter size (mL)	0.058	0.9479	0.8971–1.0015
T3 (ng/dL)	0.071	0.9932	0.9860–1.0005
Free T4 (ng/dL)	0.290	0.7570	0.4530–1.2650
T3/free T4 ratio	0.121	0.9827	0.9615–1.0045
TSHR-Ab (IU/L)	0.652	0.9940	0.9686–1.0201
Initial MMI dose (mg/day)*	0.014	0.9043	0.8348–0.9795	0.077	0.9207	0.8406–1.0085
SUVmean (g/mL)	0.103	0.9911	0.9806–1.0018
SUVmax (g/mL)	0.120	0.9965	0.9922–1.0009
%uptake*	0.015	0.8027	0.6734–0.9567	0.034	0.8199	0.6834–0.9837
Functional thyroid mass (g)*	0.016	0.9996	0.9993–0.9999	Dropped

^*Significant variables. CI = confidence interval, GD = Graves' disease, MMI = methimazole, SUV = standardized uptake valuse, TSHR-Ab = thyroid-stimulating hormone receptor antibody