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Table 3 Two-way mixed intraclass correlation coefficient (ICC) and 95% confidence interval (CI) between upright, prone, and supine positions

From: Upright, prone, and supine spinal morphology and alignment in adolescent idiopathic scoliosis

  ICC (95% CI) P value
Thoracic Cobb angle 0.967 (0.950–0.979) <0.001
Lumbar Cobb angle 0.964 (0.945–0.977) <0.001
Thoracic kyphosis 0.873 (0.806–0.919) <0.001
Lumbar lordosis 0.854 (0.777–0.907) <0.001
Thoracic apical rotation 0.815 (0.718–0.882) <0.001
Lumbar apical rotation 0.900 (0.848–0.937) <0.001