Table 3.

C-statistic of different parameters for clinical outcomes prediction

	C-statistic	95% CI	p value
fT3	0.631	0.600–0.662	0.006
fT4	0.624	0.592–0.655	0.010
fT3/fT4 ratio	0.738	0.709–0.766	<0.001
GRACE	0.755	0.727–0.782	<0.001