Table 3.

Odds ratios of culture-positive ulcers according to clinicodemographic characteristics of the study patients; the results of multivariate logistic regression analysis.

Variable	OR	(−) 95% CI	(+) 95% CI	p
With the signs of infection
Age > 65 years	1.78	1.17	2.70	0.007
Female sex	1.46	0.96	2.23	0.076
Current ulcer > 12 months	2.27	1.40	3.67	0.001
Atherosclerosis	0.46	0.24	0.88	0.019
Multiple comorbidities	0.92	0.52	1.60	0.759
Deep ulceration	1.61	0.92	2.84	0.097
Multiple ulcers	1.07	0.70	1.65	0.747
Swelling	2.02	0.93	4.36	0.075
Ulceration area > 8.25 cm2	1.39	0.88	2.21	0.158
Without the signs of infection
Age > 65 years	1.75	1.15	2.65	0.009
Female sex	1.46	0.96	2.22	0.080
Current ulcer > 12 months	2.35	1.45	3.79	<0.001
Atherosclerosis	0.49	0.26	0.93	0.028
Multiple comorbidities	0.92	0.53	1.60	0.761
Deep ulceration	1.66	0.94	2.92	0.078
Multiple ulcers	1.09	0.71	1.69	0.683
Ulceration area > 8.25 cm2	1.61	1.04	2.51	0.034

Abbreviations: OR—odds ratio; 95% CI—95% confidence interval.