From: Which level is responsible for gluteal pain in lumbar disc hernia?
GP group (n = 168)
non-GP group (n = 118)
Age
39.7 ± 9.6
41.0 ± 10.9
Gender (male: female)
122:46
80:38
Level
 L3/4
0
27
 L4/5
159
43
 L5/S1
9
48