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J Am Med Inform Assoc 13:378-384 doi:10.1197/jamia.M2049
  • Focus on e-Prescribing

Impact of a Computerized Clinical Decision Support System on Reducing Inappropriate Antimicrobial Use

Table 3

Comparison of In-hospital Mortality and Length of Stay Between the Intervention and Control Arms of the Trial

n(%) or Median(IQR a )
Outcome Patients Intervention Arm Control Arm p-value
In-hospital mortality All randomized patients 73 (3.26%) 67 (2.95%) 0.55b
Patients with alerts 45 (7.84%) 51 (8.19%) 0.52b
Length of stay (days) All randomized patientsc 3.84 (2.12–7.57) 3.99 (2.19–7.57) 0.38d
Patients with alertse 4 (2–10) 5 (2–10) 0.64d

  • ↵a interquartile range.

  • ↵b Fisher's exact test.

  • ↵c Length of stay is from admission to discharge.

  • ↵d Wilcoxon rank-sum test.

  • ↵e Length of stay is from day of first alert to discharge; fractions of days could not be measured because no exact time was associated with system alerts.

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