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Table 2 Bivariate and multivariate analyses results

From: Healthcare workers and prevention of hepatitis C virus transmission: exploring knowledge, attitudes and evidence-based practices in hemodialysis units in Italy

  Correct knowledge about HCV trasmission patterns Positive attitude toward handwashing and wearing gloves Appropriate handwashing procedures
  Bivariate Multivariate Bivariate Multivariate Bivariate Multivariate
   Log-likelihood=−154.88   Log-likelihood=−61.68   Log-likelihood=−154.55
    χ2= 23.84 (4 df), p<0.001    χ2= 25.49 (4 df), p<0.001    χ2= 30.52 (4 df), p<0.001
Variable N % OR 95% CI N % OR 95% CI N % OR 95% CI
Years in practice
≤14 59 60.8    91 91.9    68 68   
15-23 53 51 0.68# 0.49-0.94 96 89.7 0.73# 0.41-1.3 62 59.6
24 44 40.7    101 91.8    67 59.8   
  χ2 for trend=8.23, p=0.004    χ2 for trend=0.40, p=0.995    χ2 for trend=1.99, p=0.229   
Information about strategies to prevent healthcare associated infections at the time of employment
No 39 42.4    86 87.8    56 57.7   
Yes 109 54 185 92.5 135 67.5
  χ2 = 3.38, 1 df, p=0.066    χ2 = 1.80, 1 df, p=0.180    χ2 = 2.72, 1 df, p=0.099   
Knowledge about HCV prevention
Incorrect 63 55.8    97 86.6 1.00§   70 62.5   
Correct 91 46.4 185 95.8 5.8 2.06-16.29 125 64.8
  χ2 = 2.49, 1 df, p=0.114    χ2 = 8.69, 1 df, p=0.003    χ2 = 0.16, 1 df, p=0.691   
Knowledge about isolation of HCV-infected patients
Incorrect 75 43.4 1.00§   158 87.3 1.00§   104 57.8 1.00§  
Correct 76 57.1 2.72 1.55-4.78 126 96.9 4.04 1.12-14.6 93 71.5 1.52 0.85-2.71
  χ2 = 5.72, 1 df, p=0.017    Fisher’s exact p=0.004    χ2 = 6.17, 1 df, p=0.013   
Knowledge that previous bloodstream infections should be included in medical record
Agree 120 54.1 2.68 1.3-5.54 199 89.2 * * 151 66.8 * *
Disagree 20 39.2 1.00§   49 96.1    29 58   
  χ2 = 3.65, 1 df, p=0.056    Fisher’s exact p=0.186    χ2 = 1.4, 1 df, p=0.236   
Satisfaction about medical equipment
Dissatisfied 59 56.7 1.00§   - -    - -   
Satisfied 95 47.7 0.65 0.37-1.15    * *    * *
  χ2 = 2.21, 1 df, p=0.137         
Knowledge about HCV transmission patterns
Incorrect             
Correct - -    138 88.5 1.00§   84 54.2 1.00§  
    * * 147 96.1 3.65 1.23-10.81 112 73.2 2.17 1.25-3.77
     Fisher’s exact p=0.018    χ2 = 12.02, 1 df, p=0.001   
Awareness that transmission of bloodborne pathogens among healthcare workers may be prevented through adoption of evidence-based practices
Agree - - * * - - * * 169 69.5 3.02 1.6-5.69
Disagree          26 43.3 1.00§  
        χ2 = 14.41, 1 df, p<0.001   
Belief that wearing gloves does not replace the need of handwashing
Agree - - * * - - * * 13 46.4 1.00§  
Disagree          185 64.5 1.96 0.76-5.09
        χ2 = 3.55, 1 df, p=0.059   
Awareness that handwashing between patients contacts reduces the risk of HCV infection
Agree - - * * - - * * 163 63.2 1.52 0.76-3.01
Disagree          34 60.7 1.00§  
        χ2 = 0.11, 1 df, p=0.730   
  1. - not tested; * not included in the model; † removed by the model;#ordinal variable; § reference category.