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Table 1 Characteristics of study group and control group

From: Is there a correlation between upper lumbar disc herniation and multifidus muscle degeneration? A retrospective study of MRI morphology

Feature Study group Control group P
Age    > 0.05
 Range 47.47 ± 10.918 40.27 ± 10.128  
 Min - Med - Max 21-51-64 24-38.5-62  
BMI    > 0.05
 < 18.5 4 10  
 18.5 ~ 24.9 68 86  
 ≥ 25.0 60 36  
Gender    1.000
 Male 82 82  
 Female 50 50  
Profession    1.000
 Manual workers 52 52  
 Non-manual laborer 80 80  
Segments    1.000
 L1/2 18 18  
 L2/3 24 24  
 L3/4 90 90  
  1. BMI Body mass index