Self-care and risk reduction habits in older injection drug users with chronic wounds: a cross-sectional study

Table 4 Group #3: Older IDUs with chronic wounds compared to younger IDUs with wounds

	A. univariate (N = 30)			B. multivariate^a(N = 21)
	OR	95% CI	p	OR	95% CI	p
Race
Caucasian	Ref			Ref
African American	13.0	1.9 – 88.0	0.009*	4.3	0.06 – 290.1	0.502
Native American	1.0	0.07 – 14.6	1.000	0.1	0.001 – 12.7	0.387
Other	…^b
Exchange site (N = 29)
Site A	Ref			Ref
Site B	16.2	1.6 – 167.7	0.020*	2.0	0.03 – 146.2	0.751
Site C	7.2	0.6 – 83.3	0.114	…^b
Injecting into leg
No	Ref			Ref
Yes	7.9	1.3 – 47.0	0.024*	31.3	1.1 – 873.6	0.043*
Cleaning injection site before injection (N = 26) ^c
Do not clean	Ref			Ref
Alcohol	6.5	1.1 – 38.6	0.040*	13.5	0.5 – 390.6	0.130

Abbreviations: OR odds ratio, CI confidence interval.
^aVariables with at least one category with p ≤ 0.050 at the univariate level were included in the multivariate model.
^bInsufficient observations for logistic regression
^cOther categories within this variable were dropped in univariate and multivariate analysis due to insufficient observations. Dropped variables included water, soap/water, multiple or other.
*p ≤ 0.05.

ISSN: 1477-7517