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.