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Table 1 Demographic data of sample cohorts at baseline

From: Surgical treatment for lumbar spinal stenosis: a single-blinded randomized controlled trial

  Intervention group
(n = 31)
Control group
(n = 32)
P
intergroup
Gender – n (%)    0.714
 Female 23 (74.2) 25 (78.1)  
 Male 8 (25.8) 7 (21.9)  
Age – mean (SD) 60.71 (7.41) 60.22 (7.27) 0.423
Height – mean (DP) 161.87 (10.06) 163.63 (11.45) 0.521
Weight – mean (SD) 76.74 (13.34) 71.03 (11.79) 0.077
Systemic hypertension – n (%) 21 (67.7) 16 (50) 0.151
Diabetes – n (%) 6 (19.3) 9 (28.1) 0.413
Canal diameter in mm2 -– mean (SD)
 L3/L4 94.26 (15.31) 100.34 (14.19) 0.206
 L4/L5 81.87 (10.64) 81.44 (12.63) 0.725
 L5/S1 84.13 (9.29) 86.25 (11.28) 0.191
  1. Data present as number (percentage) or mean (standard deviation)