Association between Lower Normal Free Thyroxine Concentrations and Obesity Phenotype in Healthy Euthyroid Subjects

Table 3

Multiple regression analysis of determinants of serums FT4 and TSH concentrations.

	FT4*				TSH*
	Men		Women		Men		Women
	𝛽^a	𝑃	𝛽	𝑃	𝛽	𝑃	𝛽	𝑃
Age	−0.149	<0.001	0.025	0.233	0.032	0.083	0.062	0.004
BMI	−0.016	0.644	−0.116	0.002	−0.009	0.803	−0.071	0.059
WC	−0.064	0.063	−0.064	0.091	−0.039	0.267	0.050	0.189
Hypertension	−0.008	0.662	0.050	0.013	−0.011	0.541	−0.031	0.131
Heart rate	0.087	<0.001	0.103	<0.001	−0.050	0.004	−0.046	0.016
Hyperlipidemia	0.042	0.017	0.031	0.116	0.062	<0.001	0.028	0.154
HOMA-IR*	−0.155	<0.001	−0.175	<0.001	0.040	0.054	−0.036	0.099
𝑅^2 (%)	6.4		4.5		0.9		1.1

∗Tested by log-transformed; ^astandardized coefficient. These results are adjusted for all of the other variables listed in the table.