Table 3.

Single-Factor Logistic Analysis of Risk Factors for Infection in Patients with DF

Demographic Characteristics	Statistics	OR (95% CI)
Basic illness
1 type	33 (16.58%)	Ref
2 types	57 (28.64%)	1.29 (0.55, 3.06) 0.5576
3 types and above	109 (54.77%)	0.83 (0.38, 1.80) 0.6342
With hypertension
No	96 (48.24%)	Ref
Yes	103 (51.76%)	0.65 (0.37, 1.14) 0.1351
With kidney disease
No	127 (63.82%)	Ref
Yes	72 (36.18%)	1.14 (0.64, 2.03) 0.6672
With blood system disease
No	159 (79.90%)	Ref
Yes	40 (20.10%)	2.08 (1.01, 4.28) 0.0463
With cardiovascular disease
No	174 (87.44%)	Ref
Yes	25 (12.56%)	0.73 (0.32, 1.71) 0.4713
With cerebral infarction
No	144 (72.36%)	Ref
Yes	55 (27.64%)	0.55 (0.29, 1.03) 0.0623
With hyperlipidemia
No	176 (88.44%)	Ref
Yes	23 (11.56%)	0.48 (0.19, 1.18) 0.1089
With osteoporosis
No	167 (83.92%)	Ref
Yes	32 (16.08%)	5.32 (2.08, 13.59) 0.0005
Age (years)	62.29 ± 9.16	1.06 (1.02, 1.09) 0.0013
Sex
Male	117 (58.79%)	Ref
Female	82 (41.21%)	0.74 (0.42, 1.30) 0.2978
Education
Primary school or below	105 (52.76%)	Ref
Middle School	37 (18.59%)	0.69 (0.32, 1.46) 0.3314
University or above	57 (28.64%)	0.68 (0.36, 1.30) 0.2426
BMI	24.90 ± 4.16	1.04 (0.97, 1.11) 0.2771
Fasting blood glucose (mmol/L)	13.19 ± 7.46	1.03 (0.99, 1.07) 0.1803
HbA1c (%)	9.74 ± 2.62	1.05 (0.94, 1.17) 0.3742
Course of disease
<10 years	111 (55.78%)	Ref
≥10 years	88 (44.22%)	2.57 (1.44, 4.57) 0.0013
Previous use of antibacterial drugs
No	77 (38.69%)	Ref
Yes	122 (61.31%)	2.38 (1.33, 4.28) 0.0036
Types of antibacterial drugs
<2	32 (16.08%)	Ref
≥2	167 (83.92%)	3.13 (1.37, 7.18) 0.0069

Abbreviations: DF, diabetic foot; OR, odds ratio; CI, confidence interval; Ref, reference; BMI, body mass index; HbA1c, hemoglobin A1c.