Intraoperative blood perfusion factors in free anterolateral thigh flap repair for diabetic foot ulcers: A retrospective analysis

Table 1 Demographic and clinical characteristics of patients by perfusion status, n (%)

Parameters	Normal blood perfusion (n = 50)	Abnormal blood perfusion (n = 50)	t/χ2	P value
Age (years)	50.47 ± 8.64	55.29 ± 8.12	2.88	< 0.01
BMI (kg/m²)	23.44 ± 3.82	25.96 ± 4.17	3.15	< 0.01
Education level (years)	9.39 ± 3.67	8.62 ± 3.84	1.02	0.31
Gender			0.05	0.83
Male	33 (66.00)	34 (68.00)
Female	17 (34.00)	16 (32.00)
Employment, work for pay	22 (44.00)	20 (40.00)	0.16	0.69
Residential status			0.18	0.67
Rural	15 (30.00)	17 (34.00)
Urban	35 (70.00)	33 (66.00)
Marital status			0.27	0.87
Married	41 (82.00)	39 (78.00)
Single	6 (12.00)	7 (14.00)
Divorced	3 (6.00)	4 (8.00)
Smoking history	16 (32.00)	18 (36.00)	0.18	0.67
Drinking history	13 (26.00)	15 (30.00)	0.20	0.66
Hypertension	24 (48.00)	28 (56.00)	0.64	0.42
Cardiovascular disease	9 (18.00)	14 (28.00)	1.41	0.24
DR	16 (32.00)	20 (40.00)	0.69	0.41
DPN	13 (26.00)	25 (50.00)	6.11	0.01
DN	11 (22.00)	16 (32.00)	1.27	0.26
Affected toes			1.07	0.30
Yes	16 (32.00)	21 (42.00)
No	34 (68.00)	29 (58.00)
Walking impairment			1.21	0.27
Yes	12 (24.00)	17 (34.00)
No	38 (76.00)	33 (66.00)
Results of wound specimen bacterial culture			0.93	0.33
Positive	9 (18.00)	13 (26.00)
Negative	41 (82.00)	37 (74.00)
Wagner grade			0.64	0.42
3	26 (52.00)	22 (44.00)
4	24 (48.00)	28 (56.00)
Foot ulcer size (cm²)	12.39 ± 4.67	13.48 ± 5.12	1.11	0.27
Duration of diabetes (years)	10.18 ± 3.88	12.91 ± 4.09	3.43	< 0.01

DR: Diabetes retinopathy; DNP: Diabetes peripheral neuropathy; DN: Diabetes nephropathy; BMI: Body mass index.