Table 1.

Demographic variables

Variable	Value
No. of patients with LSS	70
Age (yr)	62.7±7.2
Sex
Male	27 (32.9)
Female	43 (67.1)
Height (cm)	162.5±8.2
Weight (kg)	65.4±8.7
Type of disease
Central stenosis	46 (65.7)
Degenerative spondylolisthesis	24 (34.3)
Duration of disease (mo)	42.3±66.8
Comorbidity
Yes	42 (53.2)
No	37 (46.8)
Past medical history for LSS
Yes	3 (4.3)
No	67 (95.7)

Values are presented as mean±standard deviation or number (%), unless otherwise stated.

LSS, lumbar spinal stenosis.