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Inter-observer reproducibility of the constrained and non-constrained Cobb techniques based on intra-class correlation coefficients (95% confidence interval)
| Measuring technique | Thoracic kyphosis | Lumbar lordosis |
|---|---|---|
| Non-constrained Cobb | 0.89 (0.80–0.94) | 0.87 (0.75–0.93) |
| Constrained Cobb | 0.84 (0.74–0.92) | 0.84 (0.70–0.92) |
