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Table 5 Multiple linear regression to investigate the association between patient characteristics and overall knowledge at baseline

From: A multidimensional education program at substance dependence treatment centers improves patient knowledge and hepatitis C care

  Overall knowledge score at baseline, % Optimized modela
  mean ± SDb B 95 % CI for B p value
Educational level
 <5 years 59.8 ± 19.3 Reference   
 5 – 9 years 67.8 ± 16.1 7.11 [2.96–11.26] 0.001
 ≥10 years 76.5 ± 12.8 15.13 [10.42–19.84] <0.001
Current use of intravenous drugs
 Yes 78.2 ± 13.1 7.99 [0.44–15.56] 0.038
 No 68.4 ± 16.6 Reference   
Previous referral for treatment
 Yes 70.8 ± 16.3 4.27 [1.10–7.43] 0.008
 No 64.4 ± 16.7 Reference   
Previous HCV treatment
 Yes 75.0 ± 15.0 5.40 [1.82–8.97] 0.003
 No 67.1 ± 16.7 Reference   
  1. p < 0.05 is considered statistically significant. Variables not introduced in the final model did not show statistical significance
  2. B Regression coefficient, 95 % CI for B 95 % confidence interval for the regression coefficients
  3. aThe variables sex, educational level, current use of intravenous drugs, previous referral for treatment, previous HCV treatment, and current referral to liver specialist and number of hospital visits in the previous 6 months were included in the initial model
  4. bUnadjusted mean and standard-deviation (SD) of overall knowledge score at baseline