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Sensitivity Analyses using the Preoperative Geriatric Depression Score - SF and/or the Trails B Time to Predict Postoperative Delirium
| Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|
| GDS -SF alone | 56% | 80% | 35% | 91% |
| Trails B Time alone | 75% | 82% | 44% | 95% |
| Either GDS-SF or Trails B Time | 100% | 63% | 34% | 100% |
| Both GDS-SF and Trails B Time | 31% | 99% | 83% | 88% |
GDS-SF is the Geriatric Depression Score – Short Form
PPV is the positive predictive value
NPV is the negative predictive value
