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Table 1 Patient baseline demographic characteristics, comorbidities, and health status measures according to clinical outcome

From: A valid model for predicting responsible nerve roots in lumbar degenerative disease with diagnostic doubt

  Clinical outcomes after 2 years
  ECOs (n = 81) NECOs (n = 25) P
Mean age (SD)c 62.8 ± 9.5 59.4 ± 8.2 0.08
Femaleb 39 11 0.72
Ethnicity (Han)a 76 24 0.67
Education (at least some school)a 73 22 0.72
Marital status (married)a 77 23 0.63
Compensation (Any)a 74 21 0.29
Mean BMI (SD)c 20.7 ± 3.9 22.3 ± 3.7 0.11
Smoker (no) 27 8 0.81
 Work status: noa    0.39
 Full or part time 13 7  
 Retired 27 6  
 Other 41 12  
Self-assessed health trend: noa    0.12
 Staying about the same 47 9  
 Getting worse 24 13  
 Other 10 3  
Comorbidities: noa    0.87
 Hypertension 34 8  
 Diabetes 12 4  
 Osteoporosis 27 5  
 Heart problem 19 4  
 Stomach problem 15 6  
 Bowel or intestinal problem 11 5  
 Depression 7 3  
 Joint problem 44 10  
 Other 17 5  
Total number of comorbiditiesa    0.36
 None 17 6  
 One 29 4  
 Two 22 9  
 More than two 20 5  
  1. NECO non-effective clinical outcome, BMI indicates body mass index, SD indicates standard deviation
  2. aFisher exact test; bPearson χ 2 test; cMann Whitney U test; ECO: effective clinical outcome