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Table 1 Demographic data of the study subjects

From: Epidemiology of ossification of the spinal ligaments and associated factors in the Chinese population: a cross-sectional study of 2000 consecutive individuals

Parameters Total Men Women
Number 2000 1335 665
Age(y) 48.5 ± 9.9 48.3 ± 9.7 48.9 ± 10.2
Height(cm) 167.4 ± 7.8 171.4 ± 5.6 159.4 ± 5.2
Weight(kg) 68.8 ± 12.6 68.8 ± 12.6 58.1 ± 8.4
BMI(kg/m2) 24.4 ± 3.3 25.2 ± 3.2 22.9 ± 3.1
CL(°) 7.9 ± 6.2 7.8 ± 6.3 8.0 ± 6.1
TK(°) 18.3 ± 7.7 19.3 ± 7.7 16.5 ± 7.5
LL(°) 40.6 ± 10.5 40.1 ± 10.4 41.6 ± 10.8
SS(°) 36.9 ± 7.5 36.9 ± 7.3 37.0 ± 7.9
SVA(cm) 1.87 ± 1.97 2.32 ± 2.11 0.97 ± 1.23
  1. BMI body mass index, CL cervical lordosis, TK thoracic kyphosis, LL lumbar lordosis, SS sacral slope, SVA sagittal vertical axiss