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Table 4 Logistic multivariate regression analysis

From: Use and feasibility of delayed prescribing for respiratory tract infections: A questionnaire survey

  Unadjusted Adjusted a
  Odds ratio (95% CI) P-value Odds ratio (95% CI) P-value
Age (years)     
   Less than 16 1   1  
   16-60 1,63 (0,99 - 2,69) 0,054 2,21 (1,25 - 3,92) 0,006
   60 and over 1,93 (0,79 - 4,74) 0,15 2,89 (1,01 - 8,29) 0,048
Sex     
   Male 1   1  
   Female 1,02 (0,63 - 1,65) 0,93 0,80 (0,47 - 1,36) 0,41
Highest education     
   Basic education (7-9 years) 1   1  
   High school (-12 years) 1,15 (0,53 - 2,51) 0,72 1,19 (0,50 - 2,84) 0,7
   College/university (>12 years) 1,08 (0,51 - 2,27) 0,84 1,33 (0,58 - 3,05) 0,5
Symptoms b     
   Sore throat 1,36 (0,84 - 2,19) 0,21   
   Cough 1,35 (0,85 - 2,14) 0,2   
   Fever 1,83 (1,14 - 2,93) 0,012 1,94 (1,15 - 3,27) 0,012
   Nasal congestion 0,75 (0,46 - 1,23) 0,25 0,58 (0,34 - 0,99) 0,046
   Malaise 1,4 (0,82 - 2,38) 0,21   
Feeling ill     
   A bit ill 1   1  
   Modestly ill 1,58 (0,91 - 2,75) 0,11 1,46 (0,81 - 2,61) 0,21
   Very ill 4,43 (1,84 - 10,67) 0,001 4,55 (1,77 - 11,75) 0,002
Patient expectations b     
   Antibiotic prescription 1,39 (0,88 - 2,18) 0,16   
   Sicknote 1,56 (0,81 - 2,98) 0,18   
   No expectations 0,66 (0,36 - 1,24) 0,2   
Diagnosis group     
   Sinusitis 1    
   Lower respiratory tract infections 1,21 (0,58 - 2,5) 0,61   
   Otitis 0,63 (0,33 - 1,2) 0,16   
   Upper respiratory tract symptoms and infections 1,5 (0,79 - 2,86) 0,22   
   Tonsillitis 0,97 (0,4 - 2,38) 0,95   
   Other 0,72 (0,22 - 2,35) 0,58   
  1. Odds ratio for reporting to consume the antibiotics.
  2. a The odds ratios are adjusted for the background characteristics and for the other surviving variables in the model.
  3. b The reference value is not having the spesific symptom/expectation.