Table 5.

Odds ratios of the isolation of alert pathogens from the 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
Current ulcer > 12 months	1.50	0.93	2.42	0.095
Purulence/abscess	22.82	8.53	61.05	<0.001
Unpleasant odor	84.55	37.06	192.86	<0.001
Swelling	0.82	0.41	1.63	0.569
Ulceration area > 8.25 cm2	1.22	0.74	2.01	0.441
Without the signs of infection
Current ulcer > 12 months	2.02	1.43	2.87	<0.001
Ulceration area > 8.25 cm2	2.19	1.53	3.14	<0.001

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