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J Am Med Inform Assoc 8:473-485 doi:10.1136/jamia.2001.0080473
  • Original Investigation

Evaluation of a Computerized Diagnostic Decision Support System for Patients with Pneumonia

Table 4

Comparison Between Estimated and Actual Accrual Rates

Estimated Rate Actual Rate
Absolute % Absolute %
Patients in study 9,300 10,863
Patients with pneumonia 155* 1.7 273† 2.5
Patients per day 63 70
Patients in study period 147 155
Patients in physician review for reference standard: Step 2 2,500 26.9 3,618 33.3
Patients in physician review for reference standard: Step 3 490 5.3 838 7.7

  • ↵* Pneumonia diagnosis based on ICD-9-CM codes.

  • ↵† dagger;Pneumonia diagnosis based on clinical review.

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