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Table 1 Clinical information between groups

From: Risk factors for rapid progressive neurological deterioration in patients with cervical spondylotic myelopathy

  rp-CSM c-CSM P value
No. of patients (n) 34 125  
Males/females (n) 19/15 68/57 0.8786
Mean age 57.24 ± 11.86 56.51 ± 11.64 0.7494
Smoker(%) 32.4% 16.8% 0.1286
Drink (%) 23.5% 17.6% 0.6589
Diabetes mellitus (%) 11.8% 10.4% 0.8208
Hypertension (%) 35.3% 15.2% 0.1020
Hospital stay 15.97 ± 6.92 12.78 ± 4.67 0.0019
Waiting period to surgery (m) 0.94 ± 0.43 25.80 ± 35.24 < 0.0001
Blood loss (ml) 160.0 ± 214.0 113.3 ± 108.8 0.0814
Surgery time (min) 158.4 ± 58.39 145.7 ± 57.66 0.2568
MR T2-hyperintensity (%) 88.2% 24.8% < 0.0001
Congenital spinal stenosis (%) 8.8% 10.4% 0.7881
Degenerative spinal stenosis (%) 70.6% 56.8% 0.1479
OPLL (local) (%) 5.9% 7.2% 0.7900
JOA
 Pre-operation 14.00 ± 1.97 13.94 ± 1.82 0.8760
 Final FU 16.62 ± 0.78 16.57 ± 0.75 0.7360
Surgery approach
 Anterior surgery 76.5% 90.4% 0.0689
 Posterior surgery 20.6% 8.8% 0.0188
 Anterior + posterior surgery 2.9% 0.8% 0.3236
 Mean FU (m) 68.56 ± 14.00 62.66 ± 19.95 0.1076