Undiagnosed Kidney Injury in Uninsured and Underinsured Diabetic African American Men and Putative Role of Meprin Metalloproteases in Diabetic Nephropathy

Table 1

Clinical characteristics of subjects. Data are mean ± SD. Note.   value is calculated between controls and diabetic patients with or without known kidney disease. Values without a common letter (a, b, or ab) are significantly different.

(a)

	Nondiabetic controls	Diabetics	value
	75	85
Age (years)	45.3 ± 12.8	49.3 ± 10.1	0.0215
Body mass index (kg/m^2)	30.5 ± 8.3	32.7 ± 7.9	0.0695
Waist circumstance (cm)	101.0 ± 17.7	112.7 ± 17.3	0.0002
Blood pressure (mmHg)
Systolic	135.9 ± 20.4	137.4 ± 19.8	0.6236
Diastolic	87.12 ± 12.8	86.2 ± 11.8	0.6224

(b)

	Nondiabetic controls	Diabetics			DKD
		Normoalbuminuria	Microalbuminuria	Macroalbuminuria
	75	41	27	8	9
Age (years)	45.8 ± 12.	50.3 ± 11.	49.7 ± 8.	46.3 ± 12.	44.2 ± 8.
BMI (kg/m^2)	30.5 ± 7.	32.9 ± 8.	32.9 ± 7.	30.3 ± 6.	27.5 ± 4.
WC (cm)	101.0 ± 17.	114.3 ± 16.	112.8 ± 17.	102.6 ± 16.	101.3 ± 13.1
Blood pressure
Systolic (mmHg)	135.9 ± 20.	135.2 ± 19.	135.5 ± 16.	141.5 ± 32.	144 ± 21.
Diastolic (mmHg)	87.12 ± 12.	85.2 ± 12.	86.1 ± 12.	86.1 ± 13.	89.6 ± 14.