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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