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Table 2 Group #1: Older IDUs with chronic wounds compared to younger IDUs without wounds

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

  A. univariate (N = 79) B. multivariatea(N = 71)
OR 95% CI p OR 95% CI p
Race       
 Caucasian Ref    Ref   
 African American 17.0 4.5 – 64.1 <0.001* 16.3 1.4 – 190.3 0.026*
 Native American 11.8 0.6 – 225.4 0.102 9.3 0.2 – 475.3 0.268
 Other b      
Housingc       
 Unstable Ref      
 Stable 8.3 1.0 – 66.8 0.047* d   
Medical Care       
 Emergency room Ref      
 Clinic 3.4 1.1 – 10.4 0.035* d   
 Private doctor 1.1 0.1 – 10.2 0.996    
 Other b      
Exchange site (N = 29)       
 Site A Ref    Ref   
 Site B 7.2 2.0 – 26.3 0.003* 1.5 0.2 – 12.0 0.719
 Site C 4.6 1.0 – 21.3 0.053* 17.8 1.2 – 254.5 0.034*
Time injecting drugs (years)       
 9 – 14 Ref      
 ≥15 10.7 1.3 – 91.5 0.030* d   
Participating in drug treatment program       
 No Ref      
 Yes 4.4 1.3 – 14.5 0.016* d   
Speedball       
 Never Ref      
 Occasionally 1.2 0.3 – 5.3 0.820 d   
 Everyday 4.2 1.1 – 15.7 0.035*    
Injecting into leg       
 No Ref    Ref   
 Yes 10.4 3.1 – 34.7 <0.001* 9.9 1.3 – 73.1 0.024*
Skin-popping       
 No Ref      
 Yes 4.4 1.0 – 19.9 0.055 d   
Cleaning needle with bleach upon reuse       
 Water Ref      
 Bleach 10.7 1.2 – 93.9 0.033* d   
Jail/Prison during last 6 months       
 No Ref      
 Yes 0.07 0.009 – 0.6 0.012* d   
Cigarette filters to draw up drug       
 No Ref    Ref   
 Yes 0.1 0.03 – 0.6 0.009* 0.06 0.004 – 0.9 0.039*
  1. Abbreviations: IDUs injection drug users, OR odds ratio, CI confidence interval.
  2. aVariables with at least one category with p ≤ 0.010 at the univariate level were included in the multivariate model.
  3. bInsufficient observations for both univariate and multivariate logistic regression.
  4. cUnstable includes living in a shelter, on the streets, in an abandoned unit, no set place, or multiple. Stable housing includes living in an owned/rented house, subsidized housing, with a friend, other (e.g. transitional house).
  5. dNot included in multivariate model.
  6. *p ≤ 0.05.