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Inter-instrument variability
| Examiner 1 ICC (95% CI) | Examiner 2 ICC (95% CI) | |
|---|---|---|
| Flexion | 0.97 (0.92–0.99) | 0.97 (0.90–0.99) |
| Extension | 0.99 (0.98–1.00) | 0.99 (0.97–1.00) |
| Right lateral bending | 0.90 (0.68–0.97) | 0.89 (0.65–0.97) |
| Left lateral bending | 0.91 (0.69–0.98) | 0.88 (0.60–0.97) |
Intra-class correlation coefficient values (ICC) and 95% confidence intervals (CI) for the comparison between inclinometer and the magnetic tracking device methods used by both examiners
