Table 4 Sensitivity, specificity, positive likelihood ratios (PLR), negative likelihood ratios (NLR) and area under the curve (AUC) of nutritional screening tools
| Â | Sensitivity | Specificity | PLR | NLR | AUC (95% CI) | P (AUC) |
|---|---|---|---|---|---|---|
Postoperative delirium | ||||||
 GNRI | ||||||
  Scores <92 | 28.6% | 87.0% | 2.20 | 0.82 | 0.606 (0.52–0.69) | 0.019 |
  Scores ≤98 | 51.0% | 56.1% | 1.16 | 0.87 | ||
MNA-SF | ||||||
 Scores <8 | 32.7% | 89.5% | 3.11 | 0.75 | 0.718 (0.64–0.80) | <0.001 |
 Scores <12 | 73.5% | 56.9% | 1.71 | 0.47 | ||
Prolonged length of stay | ||||||
 GNRI | ||||||
  Scores <92 | 16.9% | 84.8% | 1.11 | 0.98 | 0.611 (0.54–0.69) | 0.006 |
  Scores ≤98 | 61.5% | 59.6% | 1.52 | 0.65 | ||
MNA-SF | ||||||
 Scores <8 | 23.1% | 88.3% | 1.97 | 0.87 | 0.533 (0.45–0.62) | 0.421 |
 Scores <12 | 50.8% | 52.5% | 1.07 | 0.94 | ||