Serum-Free Thyroxine Levels Were Associated with Pulmonary Hypertension and Pulmonary Artery Systolic Pressure in Euthyroid Patients with Coronary Artery Disease

Table 3

Comparison of pulmonary artery systolic pressure among the tertile groups of thyroid function parameters.

	Tertile 1	Tertile 2	Tertile 3	Model 1; value	Model 2; value
FT3	34.75 ± 8.13	32.71 ± 5.99	33.57 ± 7.50	<0.01	0.06
FT4	33.10 ± 5.81	33.29 ± 6.97	34.31 ± 9.23	0.14	0.42
TSH	33.05 ± 6.60	34.13 ± 8.74	33.53 ± 6.94	0.24	0.36

FT₄: free thyroxine; FT₃: free triiodothyronine; TSH: thyroid-stimulating hormone; Model 1: unadjusted; Model 2: adjusted for age, gender, BMI, and LVEF. FT₃ tertiles were divided as follows: tertile 1: FT₃ ≤ 4.1 (), tertile 2: 4.1 < FT₃ ≤ 4.5 (), and tertile 3: FT₃> 4.5 (). FT₄ tertiles were divided as follows: tertile 1: FT₄ ≤ 14.2 (), tertile 2: 14.2 < FT₄ ≤ 16.1 (), and tertile 3: FT₄> 16.1 (). TSH tertiles were divided as follows: tertile 1: TSH ≤ 1.57 (), tertile 2: 1.57 < TSH ≤ 2.59 (), and tertile 3: TSH> 2.59 (). Data are presented as the mean ± standard deviation.