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Table 1 Mean (range) of demographic and deformity parameters at different time points

From: Progression of idiopathic thoracic or thoracolumbar scoliosis and pelvic obliquity in adolescent patients with and without limb length discrepancy

Parameters Time point 1 Time point 2 p value
Age (years) 13.3 (10.3–17.8) 16.1 (12.5–22) < 0.001
Time from menarche (females only) (years) 0.3 (− 3.5–5.9) 3.2 (− 0.1–8.7) < 0.001
Height (centimeter) 153.7(116.5–186) 162.4(136–187) < 0.001
Weight (pound) 115.5(60–310) 138.7(76–321) < 0.001
Body mass index (index) 21.6 (14.9–46) 23.1 (15.6–41.7) < 0.005
Risser sign (index) 2 (0–4) 4.1 (0–5) < 0.001
Major curve Cobb angle (degree) 21.6 (2–42) 26.3 (2–49) < 0.001
Nash/Moe (index) of the apex vertebra 1.3 (1–4) 1.6 (1–4) < 0.001
Iliac crest height difference (millimeter) 5.2 (0–17) 6 (0–20) = 0.05
Sacral takeoff angle (degree) 3 (0–13) 3.4 (0–17) < 0.05
Femoral head height difference (millimeter) 3.8 (0–14) 4.1 (0–16) = 0.41
  1. p-values in italics show statistically significant results