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Table 1 Summary of baseline demographic and clinical outcomes data

From: Return to work in patients with lumbar disc herniation undergoing fusion

  No fusion Fusion  
N 4560 502  
Age, years, mean (SD) 47.43 (12.10) 48.61 (11.07) 0.038
Males, N (%) 2798 (61%) 294 (59%) 0.177
BMI, kg/m [2], mean (SD) 29.87 (6.23) 30.37 (5.96) 0.010
Worker’s compensation, N (%) 375 (8%) 39 (1%) 0.689
Type of work prior to surgery, N (%) 0.063
 Sedentary 1584 (35%) 144 (29%)
 Light 1120 (25%) 128 (25%)
 Medium 1051 (23%) 143 (28%)
 Heavy 1584 (35%) 144 (29%)
Baseline scores, mean (SD)
 Back pain 5.96 (2.89) 6.52 (2.41) <0.001
 Leg pain 7.01 (2.53) 6.31 (2.77) <0.001
 EuroQOL-5D 0.54 (0.22) 0.56 (0.22) 0.158
 Oswestry Disability Index 47.39 (17.51) 47.67 (14.95) 0.688