Table 3

Multiple linear regression analysis of independent predictors of pyrrole

	Β	SE	P value	Adjust R²
Univariate analysis
Age	0.021	0.041	0.633	−0.001
Gender	−0.159	0.395	<0.0001	0.024
Diabetes mellitus	0.252	2.318	<0.0001	0.062
Fasting blood glucose	0.167	0.071	<0.0001	0.026
HbA1c	0.172	0.117	<0.0001	0.028
Urinary ketone bodies	0.074	0.974	0.088	0.004
Multivariate analysis
Diabetes mellitus*	0.265	0.392	<0.0001	0.107
Fasting blood glucose*	0.169	0.073	<0.0001	0.067
HbA1c*	0.168	0.120	<0.0001	0.067

*Adjusted by age, gender, smoking status, BMI, hypertension, and coronary disease.
BMI, body mass index; HbA1c, glycated hemoglobin A1c.