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Table 2 Correlates of GP service use in the past month a

From: A cross-sectional study describing factors associated with utilisation of GP services by a cohort of people who inject drugs

Variable n (%) Unadjusted OR Adjusted ORb
   (95% CI) (95% CI)
Female 210 (32.6) 1.84 (1.29 – 2.62) 1.30 (0.86 – 1.98)
Employed 85 (13.2) 1.86 (1.16 – 2.97) 1.44 (0.82 – 2.55)
Low income group 526 (81.5) 0.50 (0.33 – 0.75) 0.50 (0.30 – 0.83)
Current stable accommodation 514 (79.7) 0.96 (0.62 – 1.46) -
Education    
<Year 10 219 (33.9) 1.29 (0.88 – 1.89) -
Year 10-11 (ref) 292 (45.3) 1 -
Year 12 or higher 134 (20.8) 1.21 (0.77 – 1.90) -
Failure at school 193 (29.9) 0.99 (0.69 – 1.44) -
Living with children 57 (8.8) 2.37 (1.36 – 4.10) 1.97 (1.04 – 3.73)
Country of birth    
Australia (ref) 522 (80.9) 1 1
Vietnam 46 (7.13) 0.33 (0.14 – 0.79) 0.72 (0.24 – 2.14)
Other 77 (11.9) 0.77 (0.45 – 1.33) 0.98 (0.53 – 1.82)
Non-English speaking background 94 (14.6) 0.45 (0.25 – 0.79) 0.79 (0.38 – 1.62)
Identify as Aboriginal or Torres Islander 38 (5.9) 0.98 (0.47 – 2.02) -
Age at interview    
<20 34 (5.3) 2.0 (0.98 – 4.12) 1.75 (0.80 – 3.84)
20-24 153 (23.7) 1.1 (0.70 – 1.62) 1.02 (0.65 – 1.62)
25-29 (ref) 330 (51.1) 1 1
> = 30 128 (19.8) 1.0 (0.63 – 1.57) 0.92 (0.56 – 1.51)
Prison – ever 382 (59.2) 0.94 (0.66 – 1.32) -
Length of injecting career (years) 10.1 (median) 1.00 (0.96 – 1.04) -
Injected heroin - past month 527 (81.7) 0.84 (0.55 – 1.30) -
Injected methamphetamines - past month 203 (31.5) 1.25 (0.87 – 1.79) -
Used benzodiazepines - past month 350 (54.3) 1.25 (0.89 – 1.76) -
Injected daily or more 191 (29.6) 0.56 (0.38 – 0.84) 0.59 (0.38 – 0.91)
Tested for Hepatitis C / HIV - ever 594 (92.1) 2.35 (1.08 – 5.11) -
Experienced barrier/s to accessing treatment 72 (11.2) 1.63 (0.98 – 2.70) 1.28 (0.73 – 2.27)
Currently on OST 222 (34.4) 1.10 (0.77 – 1.57) 0.94 (0.63 – 1.41)
Number of other health services used - past month    
None 422 (65.4) 0.68 (0.46 – 0.99) 0.88 (0.58 – 1.35)
Less than 3 (ref) 178 (27.6) 1 1
3 or more 45 (7.0) 2.30 (1.19 – 4.47) 1.88 (0.93 – 3.80)
Social/ welfare worker contact - past month 133 (20.6) 2.43 (1.63 – 3.60) 1.92 (1.24 – 2.98)
Heroin overdose – 6 months 63 (9.8) 0.88 (0.49 – 1.58) -
Intentional overdose - ever 73 (11.3) 2.19 (1.34 – 3.60) 1.59 (0.91 – 2.78)
AUDIT-C score (0 – 11)    
abstinent (ref) 228 (35.4) 1 11.33 (0.85 – 1.86)
<8 292 (45.3) 1.74 (1.17 – 2.57) 1.10 (0.63 – 1.91)
> = 8 124 (19.2) 1.49 (0.91 - 2.44)  
SF8 Physical wellbeing score poor (45 or below) 194 (30.1) 1.47 (1.02 – 2.11) 1.22 (0.80 – 1.86)
SF8 Mental wellbeing score poor (45 or below) 317 (49.1) 1.57 (1.12 – 2.22) 1.07 (0.71 – 1.62)
Personal Wellbeing Index score 55 (median) 0.99 (0.98 – 1.00) -
One or more general health conditions 336 (52.1) 1.76 (1.24 – 2.49) 1.38 (0.93 – 2.05)
  1. aResults are from logistic regression with a final model comprising 645 observations.
  2. bAOR reported for exposures significant (p < .1) at the bivariate level which did not exhibit multicollinearity in the final model (overall VIF = 1.78, Pearson chi-square p = .271).
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