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 |