表 1. Comparison of the baseline clinical data of the DFU inpatients of different renal function statuses.

不同肾功能的DFU患者的临床特征比较

Factor	Total (n=962)	Renal function (mL/[min·1.73 m2])			P
		eGFR≥60 (n=696)	15≤eGFR<60 (n=222)	eGFR<15 (n=44)
eGFR: estimated glomerular filtration rate; BMI: body mass index; ABI: ankle-brachial index; CAD: coronary artery disease; PAD: peripheral artery disease; HbA1c: hemoglobin A1c; WBC: white blood cell; NEUT%: neutrocyte proportion; PCT: procalcitonin; Hb: hemoglobin; ALB: albumin. a Median (P25, P75); * P<0.05, vs. eGFR≥60 mL/(min·1.73 m2).
Male/case (%)	602 (63)	433 (62)	135 (61)	34 (77)	0.131
Age/yr.	65±12	64±12	70±11*	65±9	<0.001
Smoking/case (%)	493 (52)	365 (53)	105 (48)	23 (53)	0.851
Duration of diabetes/years	11.1±7.6	10.1±7.4	13.1±7.3*	16.8±8.8*	<0.001
BMI/(kg/m2)	23.3±3.4	23.3±3.5	23.2±2.9	23.9±4.0	0.534
ABI	0.9±0.3	0.9±0.3	0.8±0.3*	0.8±0.3	<0.001
Wagner classification/case (%)					<0.001
Grade 1	67 (10)	48 (7)	18 (8)	1 (2)	0.378
Grade 2	166 (17)	123 (18)	37 (17)	6 (14)	0.763
Grade 3	405 (42)	309 (44)	87 (39)	9 (20%)*	0.005
Grade 4	295 (31)	198 (28)	75 (34%)*	22 (50%)*	0.006
Grade 5	29 (3)	18 (3)	5 (2%)*	6 (14%)*	<0.001
Hypertension/case (%)	667 (69)	452 (65)	179 (81%)*	36 (89%)*	<0.001
CAD/case (%)	229 (24)	132 (19)	75 (34%)*	22 (50%)*	<0.001
PAD/case (%)	552 (70)	359 (63)	163 (86%)*	30 (83%)*	<0.001
Diabetic neuropathy/case (%)	920 (96)	662 (96)	215 (97)	43 (98)	0.718
HbA1c/%	8.7±2.3	8.9±2.457	8.2±1.9*	7.7±2.2*	<0.001
WBC/(×109 L－1)	8.0±3.8	7.8±3.8	8.3±3.9	9.7±3.8*	0.003
NEUT/%	69±13	68±13	72±11*	74±15*	<0.001
PCT/(ng/mL)a	0.1 (0–0.1)	0.06 (0–0.1)	0.1 (0.06–0.13)*	0.64 (0.23–2.06)*	<0.001
Hb/(g/L)	113±22	117±21	107±21*	94±27*	0.008
ALB/(g/L)	36±6	36±6	36±6	34±6	0.09