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Table 1 Comparison of demographic data, sagittal parameters and postural patterns

From: How does the sagittal spinal balance of the scoliotic population deviate from the asymptomatic population?

Items Normal adults (n = 126) Scoliotic adults (n = 117) P value
Age (y) 26.4 ± 3.7 (26.0, 27.1) 26.3 ± 4.7 (25.4, 27.1) 0.777
BMI (kg/m2) 22.0 ± 3.2 (21.4, 22.6) 22.2 ± 3.8 (21.5, 22.8) 0.731
Sagittal spinopelvic parameters (mean ± SD; 95%CI)
 Thoracic kyphosis (°) 39.1 ± 11.0 (37.1, 41.0) 37.0 ± 15.0 (34.2, 39.7) 0.214
 Lumbar lordosis (°) 54.0 ± 10.0 (52.3, 55.8) 54.6 ± 12.1 (52.4, 56.8) 0.703
 Sacral slope (°) 37.2 ± 6.7 (36.0, 38.3) 39.2 ± 8.4 (37.6, 40.7) 0.039*
 Pelvic incidence (°) 41.2 ± 7.1 (39.9, 42.4) 45.5 ± 10.0 (43.6, 47.3) 0.000*
 Pelvic tilt (°) 4.5 ± 2.4 (4.1, 4.9) 7.9 ± 7.5 (6.5, 9.3) 0.000*
 Spinosacral angle (°) 131.8 ± 6.9 (130.5, 133.0) 131.9 ± 8.9 (130.2, 133.5) 0.925
 Spinal tilt (°) 94.6 ± 3.9 (93.9, 95.3) 92.7 ± 4.2 (91.9, 93.5) 0.000*
Sagittal postural patterns (n, percent)
 Roussouly 1 31 (24.6%) 25 (21.4%) 0.665
 Roussouly 2 17 (13.5%) 20 (17.1%)
 Roussouly 3 62 (49.2%) 53 (45.3%)
 Roussouly 4 16 (12.7%) 19 (16.2%)
C7-subgroups (n, percent)
 C7-anterior 6 (4.8%) 29 (24.8%) 0.000#
 C7-posterior 120 (95.2%) 88 (75.2%)
  1. BMI stands for body mass index
  2. *Statistically significant at P < 0.05, unpaired student t test (two-tailed)
  3. #Statistically significant at P < 0.05, Pearson’s χ2 test (two-tailed)