Table 2 Changes in EQ-5D and ODI over 2 years following lumbar spinal stenosis (LSS) surgery
From: Obese people benefit from lumbar spinal stenosis surgery as much as people of normal weight
| Before surgery | P value* | Change over 2 years | P value* | |||||
|---|---|---|---|---|---|---|---|---|
| BMI | BMI | |||||||
|
Normal < 25 |
Overweight 25.0–29.9 |
Obese ≥30 |
Normal < 25 |
Overweight 25.0–29.9 |
Obese ≥30 | |||
| Mean (±SD) | Mean (±SD) | Mean (±SD) |
Mean (95% CI) |
Mean (95% CI) |
Mean (95% CI) | |||
| EQ-5D | 0.49 (0.32) | 0.48 (0.29) | 0.43 (0.28) | 0.41 |
0.23 (0.17 to 0.29) |
0.22 (0.17 to 0.27) |
0.22 (0.16 to 0.29) | 0.92 |
| ODI | 28 (21) | 30 (20) | 36 (20) | 0.001 |
− 17 (− 21 to − 14) |
− 15 (− 18 to − 10) |
− 14 (− 18 to − 10) | 0.54 |