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Table 1 Comparison of patient backgrounds

From: Spino cranial angle as a predictor of loss of cervical lordosis after laminoplasty in patients with cervical myelopathy

 

Total

LS

MS

HS

No. of patients

68

18

33

17

Age (year)

58.63 ± 8.67

57.39 ± 9.44

59.39 ± 7.73

58.47 ± 9.89

Sex (M/F)

35/33

11/7

16/17

8/9

Range of SCA (º)

69.3–104.9

69.3–75.9

76.2–92.3

93.4–104.9

CSM/OPLL

45/23

13/5

23/10

9/8

Type of OPLL (N)

 Segmental

12

2

5

5

 Continuous

5

1

2

2

 Mixed

6

2

3

1

 

LS vs. MS

LS vs. HS

MS vs. HS

Age (year)

0.417*

0.447#

0.926#

Sex (M/F)

0.388+

0.505†

0.924+

CSM/OPLL

0.850+

0.305†

0.242+

Type of OPLL (N)

0.779‡

0.347‡

0.578‡

  1. SCA spino cranial angle, CSM cervical spondylotic myelopathy, OPLL ossification of posterior longitudinal ligament, LS low SCA, MS middle SCA, HS high SCA
  2. *Independent t-test
  3. #Mann–Whitney U test
  4. +Pearson Chi-square test
  5. †Fisher’s Exact test
  6. ‡Linear-by-linear association
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