Free Triiodothyronine Levels Are Associated with Diabetic Nephropathy in Euthyroid Patients with Type 2 Diabetes

Table 2

Relationship between thyroid function and related clinical variables.

	FT3		FT4		TSH
Diabetic duration	0.01	0.90	−0.03	0.48	−0.16	<0.01
BMI	0.02	0.64	0.07	0.17	0.16	<0.01
SBP	0.01	0.89	0.03	0.62	0.04	0.46
DBP	−0.03	0.50	0.06	0.24	0.09	0.08
FPG	−0.10	0.04	−0.09	0.07	−0.01	0.82
HbA1c	−0.14	<0.01	−0.11	0.03	−0.03	0.55
TG	0.13	0.01	0.08	0.11	0.19	<0.01
TC	0.06	0.26	0.06	0.21	0.07	0.17
HDL-C	0.04	0.46	−0.03	0.61	−0.13	<0.01
LDL-C	−0.02	0.71	0.05	0.32	0.04	0.47
UACR	−0.19	<0.01	−0.02	0.65	0.06	0.25
eGFR	0.10	0.03	0.04	0.38	−0.03	0.55

Data for TSH, HbA1c, and UACR levels were natural log-transformed, and those for TG levels were arctan-transformed before analysis. values were adjusted for age and gender.
BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; FPG, fasting plasma glucose; TG, triglyceride; TC, total cholesterol; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; UACR, urinary albumin-to-creatinine ratio; eGFR, estimated glomerular filtration rate; FT3, free triiodothyronine; FT4, free thyroxine; TSH, thyroid-stimulating hormone.