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. 2021 Jan 13;16:125–131. doi: 10.1016/j.jcot.2021.01.002

Table 1.

Shows demographics and clinical features of the patients at baseline.

Variable (total number of cases = 77)
Age in years [mean ± SD]) (n = 77) 66 ± 11.9 (range: 27–89 years)
Gender (n = 77)
 Male/Female 36 (46.8%)/41 (53.2%)



Location of pain (n = 77)
 Backache 1 (1.3%)
 Leg pain 17 (22.1%)
 Backache and leg pain 59 (76.6%)



Affected extremity (n = 74)
 Single leg pain/Pain in both legs 34 (45.9%)/40 (54.1%)



Sensory symptoms
 Presence of paresthesias (n = 72) 47 (65.3%)
 Presence of numbness (n = 73) 50 (68.5%)



Side of operation (n = 77)
 Right/Left/Bilateral 10 (13%)/21 (27.3%)/46 (59.7%)



Number of affected levels (n = 77)
Single level/Two levels/Three levels 48 (62.3%)/21 (27.3%)/8 (10.4%)



Affected levels (n = 77)
 L2/L3 1 (1.3%)
 L3/L4 1 (1.3%)
 L4/L5 41 (53.2%)
 L5/S1 5 (6.5%)



 L3/L4 + L4/L5 11 (14.3%)
 L4/L5 + L5/S1 10 (13%)
 L2/L3 + L3/L4 + L4/L5 4 (5.2%)
 L3/L4 + L4/L5 + L5/S1 4 (5.2%)



Type of surgery (n = 77)
 Primary decompression 75 (97.4%)
 Revision decompression 2 (2.6%)

Age is presented as mean and SD (standard deviation).

Rest all data presented as proportion and percentage.