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Table 1 Demographics and clinical diagnosis of patients studied

From: Gravity determines the direction of nerve roots sedimentation in the lumbar spinal canal

 

Negative SedSign

(N = 25)

Positive SedSign

(N = 31)

Age

51.6 ± 13

67.5 ± 7a

Male/female

12/13

19/12

Clinical Diagnosisb

 Lumbar spinal stenosis

0

17

 Lumbar disc herniation

6

12

 Spondylolisthesis

1

2

 Nonspecific back pain

18

0

  1. a Data were mean ± SD, and t-test was used, P < 0.001; b: Chi squared test was used, P < 0.001. clinical diagnoses were significantly different between SedSign positive and negative groups