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Table 1 Summary of characteristics in 140 study patients. BMI; body mass index, NRS; numeric rating scale, LBP; low back pain, CL;cervical lordosis (C2–C7), TK; thoracic kyphosis (T5–12), LL; lumbar lordosis (T12–S1), SS; sacral slope, PI; pelvic incidence, PT; pelvic tilt, SS; sacral slope, SVA; sagittal vertical axis. All values are expressed as mean value ± standard deviation

From: The correlation analysis between sagittal alignment and cross-sectional area of paraspinal muscle in patients with lumbar spinal stenosis and degenerative spondylolisthesis

  Overall Male Female P value
Number of Cases 140 67 73  
Age (yrs) 70.6 ± 9.0 70.9 ± 9.4 70.4 ± 8.6 0.724
Height (cm) 158.2 ± 9.6 165.0 ± 7.9 152.0 ± 6.3 < 0.001
Body weight (kg) 61.5 ± 12.8 67.5 ± 12.8 56.1 ± 10.3 < 0.001
BMI (kg/m2) 24.4 ± 4.0 24.7 ± 3.3 24.2 ± 4.5 0.153
NRS of LBP 5.5 ± 2.8 5.6 ± 2.8 5.5 ± 2.7 0.984
Radiological parameters
 CL 8.9 ± 14.3 9.4 ± 15.1 8.4 ± 13.8 0.358
 TK 25.2 ± 9.8 25.7 ± 9.1 24.8 ± 10.4 0.809
 LL 32.2 ± 15.8 31.7 ± 14.4 32.7 ± 17.0 0.404
 PI 50.1 ± 9.6 47.8 ± 8.6 52.2 ± 10.1 < 0.01
 PT 23.6 ± 9.0 21.5 ± 7.8 25.5 ± 9.6 < 0.05
 SS 26.0 ± 9.2 25.9 ± 10.0 26.2 ± 8.5 0.470
 C7-SVA 65.4 ± 55.1 67.6 ± 51.7 63.4 ± 58.4 0.490