Table 4B.

Results of univariate and multivariate regression analysis of risk factors for hypothyroidism versus euthyroidism at 2 year after the onset of SAT.

Variables entered as covariates	Hypothyroidism vs. euthyroidism at 2 year
	Univariate		Multivariate
	OR(95%CI)	P-value	OR(95% CI)	P-value
Treatment methoda	0.08 (0.01–0.77)	0.028	0.13 (0.01–1.51)	0.134
Maximal FT4b	1.03 (0.98–1.09)	0.214	1.03 (0.97–1.10)	0.300
Maximal TSHb	1.18 (1.04–1.34)	0.012	1.18 (1.01–1.38)	0.032

^aThe treatment is divided into prednisolone and no prednisolone.

^bWithin 3 months of SAT onset.