Parathyroid Hormone is Negatively Correlated with Glycated Hemoglobin in Newly Diagnosed Type 2 Diabetic Patients

Table 4

Multiple regression analysis between PTH and other parameters in newly diagnosed type 2 diabetic patients.

	Model 1			Model 2
	β	95% CI		β	95% CI
HbA1c	−1.708	(−2.631, −0.784)	<0.001	−1.475	(−2.460, −0.490)	0.003
HOMA-IR	0.741	(0.007, 1.475)	0.048	0.093	(−0.769, 0.955)	0.831
HOMA-β	0.072	(0.027, 0.118)	0.002	0.090	(0.039, 0.141)	0.001

PTH, parathyroid hormone; HbA1c, glycated hemoglobin; HOMA-IR, homeostasis model assessment of insulin resistance; HOMA-β, homeostasis model assessment of β-cell function. Model 1: values of β and 95% confidence interval (CI) were calculated using the multivariate linear regression models without adjustment for variables. Model 2: values of β and 95% CI were calculated using the multivariate linear regression models and adjusted for age, sex, season, BMI, 25-OH-D3, Ca, and P.