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Table 3 Baseline characteristics of participants classified by the presence or absence of ossification

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

Number

C-OPLL

T-OPLL

T-OLF

+(n = 82)

-(n = 1918)

p

+(n = 45)

-(n = 1955)

p

+(n = 753)

-(n = 1247)

p

Age(y)

51.7 ± 9.1

48.4 ± 9.9

0.003

51.8 ± 11.2

48.4 ± 9.9

0.026

49.7 ± 9.7

47.8 ± 9.9

< 0.001

Height(cm)

167.3 ± 7.6

167.4 ± 7.9

0.941

166.1 ± 7.9

167.4 ± 7.8

0.259

167.1 ± 7.7

167.6 ± 7.9

0.257

Weight(kg)

74.6 ± 13.8

68.5 ± 12.5

< 0.001

71.5 ± 13.6

68.7 ± 12.6

0.156

68.3 ± 12.9

69.1 ± 12.4

0.222

BMI(kg/m2)

26.5 ± 3.8

24.3 ± 3.3

< 0.001

25.8 ± 3.3

24.4 ± 3.3

0.008

24.3 ± 3.4

24.5 ± 3.3

0.364

CL(°)

8.2 ± 7.1

7.8 ± 6.2

0.648

8.5 ± 8.2

7.8 ± 6.2

0.479

8.0 ± 6.3

7.8 ± 6.2

0.380

TK(°)

16.8 ± 7.0

18.4 ± 7.7

0.073

19.1 ± 8.8

18.3 ± 7.7

0.505

19.2 ± 8.1

17.8 ± 7.4

< 0.001

LL(°)

38.9 ± 9.1

40.7 ± 10.6

0.128

41.2 ± 11.1

40.6 ± 10.5

0.708

41.8 ± 10.7

39.9 ± 10.3

< 0.001

SS(°)

35.9 ± 6.6

37.2 ± 10.7

0.293

37.4 ± 7.6

37.1 ± 10.6

0.853

37.5 ± 7.7

36.6 ± 7.4

0.008

SVA(cm)

1.79 ± 1.10

1.88 ± 2.00

0.716

1.84 ± 1.30

1.87 ± 1.99

0.916

1.86 ± 1.33

1.88 ± 2.28

0.811

  1. BMI body mass index, CL cervical lordosis, TK thoracic kyphosis, LL lumbar lordosis, SS sacral slope, SVA sagittal vertical axis, C cervical, T thoracic, L lumbar, OPLL ossification of the posterior longitudinal ligament, OLF ossification of the ligamentum flavum