Table 1. Final classification obtained in each model, success rate, sensitivity and specificity.
| Models | Groups | Final classification | Total | Success rate | Sensitivity | Specificity | |
|---|---|---|---|---|---|---|---|
| CG | LBPG | ||||||
| 1. NMQ, RDQ, VAS and PE | CG | 25 | 3 | 28 | 88% | 0.89 | 0.86 |
| LBP | 3 | 19 | 22 | ||||
| 2. NMQ and PE | CG | 25 | 3 | 28 | 94% | 1.00 | 0.88 |
| LBP | 0 | 22 | 22 | ||||
| 3. NMQ, RDQ and VAS | CG | 25 | 3 | 28 | 82% | 0.81 | 0.84 |
| LBP | 6 | 16 | 22 | ||||
| 4. NMQ | CG | 25 | 3 | 28 | 94% | 1.00 | 0.88 |
| LBP | 0 | 22 | 22 | ||||
NMQ: Nordic Musculoskeletal Questionnaire; RDQ: Roland Disability Questionnaire; VAS: Visual Analogue Scale; PE: physical examination; CG: control group; LBP: low back pain group