Delayed treatment of diabetic foot ulcer in patients with type 2 diabetes and its prediction model

Table 3 Renal function levels, n (%)

Characteristic	NDF group (n = 210)	DF group (n = 82)	t/χ2	P value
Plasma creatinine (μmol/L)	49.7 ± 4.12	50.27 ± 4.34	1.024	0.307
Plasma urea (mmol/L)	1.35 ± 0.59	1.41 ± 0.67	0.687	0.493
eGFR, mL/min/1.73 m2			0.048	0.827
≥ 60	153 (72.86)	58 (70.73)
< 60	57 (27.14)	24 (29.27)

DF: Diabetic foot; NDF: Nondiabetic foot group; eGFR: Estimated glomerular filtration rate.