Table 12.

Logistic regression analysis of the incidence of MS and its related components and THs levels in the context of normal thyroid function.

The project	Group	FT3		FT4		TSH
		%	ORs (95%CI)	%	ORs (95%CI)	%	ORs (95%CI)
MS	T1	18.4	1 (Ref.)	16.4	1 (Ref.)	23.1	1 (Ref.)
	T2	24.7	1.58 (1.23~2.04)*	21.0	1.43 (1.11~1.84)*	22.8	1.20 (0.95~1.52)
	T3	26.1	1.94 (1.45~2.58)*	31.8	2.48 (1.93~3.17)*	23.3	1.26 (0.99~1.59)
Abdominal obesity	T1	24.9	1 (Ref.)	26.6	1 (Ref.)	30.2	1 (Ref.)
	T2	31.0	1.51 (1.21~1.89)*	28.6	1.23 (0.91~1.40)	30.4	1.17 (0.95~1.44)
	T3	36.9	2.33 (1.80~3.02)*	37.6	1.64 (1.32~2.03)*	32.1	1.28 (1.04~1.58)*
High blood sugar	T1	25.4	1 (Ref.)	20.9	1 (Ref.)	27.8	1 (Ref.)
	T2	26.6	1.13 (0.89~1.44)	24.3	1.33 (1.05~1.68)*	23.7	0.92 (0.73~1.15)
	T3	21.5	1.14 (0.85~1.49)	28.2	1.71 (1.34~2.17)*	21.9	0.74 (0.59~0.93)*
Hypertension	T1	43.6	1 (Ref.)	42.3	1 (Ref.)	50.5	1 (Ref.)
	T2	49.1	1.41 (1.15~1.74)*	44.3	1.16 (0.95~1.41)	42.3	0.78 (0.64~0.95)*
	T3	46.7	1.49 (1.17~1.90)*	53.8	1.66 (1.35~2.05)*	46.6	0.88 (0.72~1.08)
HighTG	T1	24.5	1 (Ref.)	21.5	1 (Ref.)	27.7	1 (Ref.)
	T2	28.7	1.32 (1.05~1.64)*	26.5	1.33 (1.07~1.66)*	28.0	1.16 (0.94~1.43)*
	T3	33.3	1.61 (1.25~2.08)*	38.6	2.28 (1.83~2.85)*	30.9	1.38 (1.2~1.70)*
Low HDL-C	T1	13.7	1 (Ref.)	14.6	1 (Ref.)	18.0	1 (Ref.)
	T2	17.5	1.16 (0.89~1.52)	16.7	1.05 (0.81~1.36)	18.7	1.13 (0.89~1.44)
	T3	24.8	1.40 (1.04~1.88)*	24.8	1.57 (1.22~2.00)*	19.3	1.36 (1.07~1.74)*

The Logistic regression analysis equation was adjusted for age, gender, smoking history and drinking history. % indicates the incidence of MS or its components after the tertile of THs; OR represents odds ratio; CI represents confidence interval; TI-T3 represents the 1st to 3rd quantile; * indicates P< 0.05.