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Table 4 Clinical index to predict delirium diagnosed according to the DSM-IVcriteria by ratings of the NEECHAM confusion scale* (n = 123)

From: Recognition of delirium in ICU patients: a diagnostic study of the NEECHAM confusion scale in ICU patients

Sensitivity [(35/36) × 100] 97.2%
Specificity [(72/87) × 100] 82.8%
Predicted value for positive test [(35/50) × 100] 70.0%
Predicted value for negative test [(72/73) × 100] 98.6%
Precision [(35+72/35+15+1+72) × 100] 86.9%
  1. * NEECHAM ratings of 0–24 were rated as delirious