Association between the serum concentration of triiodothyronine with components of metabolic syndrome, cardiovascular risk, and diet in euthyroid post-menopausal women without and with metabolic syndrome

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Table 1 Correlation analysis between TSH or thyroid hormones and cardio-metabolic variables in euthyroid post-menopausal women

*Variable*	*TSH*	T4	*Free T4*	T3
Age (years)	-0.061	-0.205*	-0.036	-0.205*
BMI (kg/m²)	-0.108	0.114	0.136	0.220*
Glucose (mg/dL)	-0.023	-0.010	0.261*	-0.264**
Insulin (μUI/mL)	-0.099	0.046	0.030	0.425***
HOMA-IR	-0.079	0.080	0.167	0.239**
Triglycerides (mg/dL)	0.063	0.021	0.011	-0.052
Cholesterol (mg/dL)	-0.045	-0.096	-0.022	-0.100
HDL-C (mg/dL)	0.113	0.034	0.084	-0.266**
Systolic pressure (mmHg)	-0.038	0.067	0.136	-0.072
Diastolic pressure (mmHg)	0.125	0.201*	0.187*	-0.002
Serum iodine (μg/L)	-0.548***	0.008	0.343*	0.286*
Menarche (years)	-0.055	-0.004	-0.014	0.084
Age of menopause (years)	0.035	-0.109	-0.040	-0.157
Years post-menopause	-0.021	-0.129	-0.010	-0.131

TSH, thyrotropin; T4, thyroxine; T3, triiodothyronine. BMI, body mass index; HOMA-IR, insulin resistance; high-density lipoprotein cholesterol (HDL-C). All participants (n = 120) were included for these analyses, except to the serum iodine in which only samples from 52 women were measured. Simple Pearson or Spearman correlation tests were applied. Values are correlation coefficients. *P ≤ 0.05, **P < 0.01, and ***P < 0.001.