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Regression analysis of the association between chronological age and skeletal maturation stages
| Predictor (stage) | β coefficient (years per stage) |
Standard Error (SE) | 95% Confidence Interval | p-value |
|---|---|---|---|---|
| C2 stage | 1.42 | 0.04 | 1.34–1.50 | < 0.001 |
| C3 stage | 1.36 | 0.05 | 1.26–1.46 | < 0.001 |
| C4 stage | 1.28 | 0.05 | 1.18–1.38 | < 0.001 |
| SOS stage | 0.91 | 0.04 | 0.83–0.99 | < 0.001 |
