Table 2. Performance measures of the cut-off points of the final score of the PG-SGA SF© in relation to the diagnosis of malnutritiona in patients with HNC evaluated in the BSCN (n = 353).
| Performance measures | PG-SGA SF© final score (points) | |||||||
|---|---|---|---|---|---|---|---|---|
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9b | |
| Sensitivity | 100% | 98.23% | 96.90% | 96.90% | 93.81% | 88.94% | 84.96% | 84.96% |
| Specificity | 25.20% | 38.58% | 49.61% | 59.06% | 69.29% | 76.38% | 81.89% | 85.83% |
| LR+ | 1.34 | 1.60 | 1.92 | 2.37 | 3.05 | 3.76 | 4.69 | 5.77 |
| LR- | 0 | 0.04 | 0.06 | 0.05 | 0.08 | 0.14 | 0.18 | 0.21 |
a
malnutrition diagnosed using the patient-generated subjective global assessment® (sum of stages B and C)
b
cutoff points above nine had lower sensitivity (and decreasing) values
n = number of observations; LR = likelihood ratio; PG-SGA SF© = Patient-Generated Subjective Global Assessment short form