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Table 1 Prescribing errors

From: Automation bias in electronic prescribing

   Control   Quality of Decision Support   
   No CDS Correct CDS Incorrect CDS Total
   n % n % n % n %
Omission errors
  Wrong drug 57 35.8 7 25.0 116 41.9 180 38.8
  Wrong dose 55 34.6 9 32.1 72 26.0 136 29.3
  Wrong frequency 0 0.0 0 0.0 0 0.0 0 0.0
  Drug-drug interaction 28 17.6 7 25.0 60 21.7 95 20.5
  Wrong route 0 0.0 0 0.0 0 0.0 0 0.0
  Wrong formulation 0 0.0 0 0.0 0 0.0 0 0.0
  Duplicated drug therapy 19 11.9 5 17.9 29 10.5 53 11.4
  Not indicated 0 0.0 0 0.0 0 0.0 0 0.0
  Not Prescribed 0 0.0 0 0.0 0 0.0 0 0.0
   Total omission errors 159   28   277   464  
Commission errors
  Not prescribed 24 100.0 18 100.0 229 100.0 271 100.0
   Total commission errors 24   18   229   271  
User originated errors
  Wrong drug 8 5.8 10 11.6 9 9.9 27 8.6
  Wrong dose 43 31.4 29 33.7 22 24.2 94 29.9
  Wrong frequency 10 7.3 6 7.0 4 4.4 20 6.4
  Drug-drug interaction 0 0.0 0 0.0 0 0.0 0 0.0
  Wrong route 0 0.0 0 0.0 1 1.1 1 0.3
  Wrong formulation 1 0.7 0 0.0 0 0.0 1 0.3
  Duplicated drug therapy 0 0.0 0 0.0 1 1.1 1 0.3
  Not indicated 0 0.0 1 1.2 0 0.0 1 0.3
  Not prescribed 75 54.7 40 46.5 54 59.3 169 53.8
   Total user originated errors 137   86   91   314  
Total errors
  Wrong drug 65 20.3 17 12.9 125 20.9 207 19.7
  Wrong dose 98 30.6 38 28.8 94 15.7 230 21.9
  Wrong frequency 10 3.1 6 4.5 4 0.7 20 1.9
  Drug-drug interaction 28 8.8 7 5.3 60 10.1 95 9.1
  Wrong route 0 0.0 0 0.0 1 0.2 1 0.1
  Wrong formulation 1 0.3 0 0.0 0 0.0 1 0.1
  Duplicated drug therapy 19 5.9 5 3.8 30 5.0 54 5.1
  Not indicated 0 0.0 1 0.8 0 0.0 1 0.1
  Not Prescribed 99 30.9 58 43.9 283 47.4 440 41.9
   Total errors 320   132   597   1049