Role of serum β2-microglobulin, glycosylated hemoglobin, and vascular endothelial growth factor levels in diabetic nephropathy

Table 1 Comparison of baseline data among the five groups (mean ± SE)

Group	n	Age (yr)	BMI (kg/m2)	Sex (male/female)
Normal urinary protein group	32	49.34 ± 4.28	24.33 ± 1.65	15/17
Microproteinuria group	35	49.22 ± 4.34	24.31 ± 1.51	15/20
Massive proteinuria group	40	49.25 ± 4.29	24.52 ± 1.52	29/11
Healthy group	107	49.72 ± 4.11	24.49 ± 1.62	55/52
Simple diabetes group	107	49.88 ± 4.69	24.59 ± 1.97	57/50
χ2/F value	-	0.281	0.259	8.142
P value	-	0.890	0.904	0.087

BMI: Body mass index.