Comparison of the sensitivities, specificities, and efficiencies of insulin-like growth factor I (IGF-I) and IGF binding protein 3 (IGFBP-3) measurements at different cut off SDS values
| Cut off SDS | IGF-1 | IGFBP-3 | |||||
|---|---|---|---|---|---|---|---|
| Sensitivity | Specificity | Efficiency | Sensitivity | Specificity | Efficiency | ||
| −5 | 1.7 | 100 | 48 | ||||
| −4 | 10.3 | 99 | 53 | ||||
| −3 | 28 | 91 | 58 | 2.6 | 99 | 48.6 | |
| −2 | 62 | 47 | 55 | 14.9 | 98 | 54.6 | |
| −1 | 95 | 11.6 | 54 | 49 | 83.6 | 65.5 | |
| −0.5 | 61 | 68 | 64.6 | ||||