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Characteristics (observer-induced errors, accuracy, sensitivity and specificity) of different popular indices
| Intra-observer error | Inter-observer error | Threshold for scoliosis cases | Threshold for change (as suggested by Asher [58]) | Sensitivity | Specificity | |
|---|---|---|---|---|---|---|
| Cobb | 4° | 7° | ± 5° | High | Low | |
| POTSI | 5.5 | 6.4 | 28.1 | ± 8 | Low | High |
| SHS | 1.2 | 1.9 | 9.0 | ± 3.5 | ||
| DAPI | High | Low | ||||
| Moiré | High | Low | ||||
| Adam | 0° | High | Low | |||
