Table 2.
Preoperative Characteristics for MC Patients ± Severe MC Grade.
| Grade A (n = 72) | Grade B + C (n = 70) | P-value | |
|---|---|---|---|
| Age, years, mean (SD) | 49.08 (10.21) | 50.32 (12.55) | .423 |
| Females, N (%) | 35 (48) | 36 (52) | .196 |
| Body mass index (kg/m2) | 25.72 (5.43) | 28.27 (6.82) | .175 |
| Smoker, N (%) | 18 (25) | 20 (28) | .078 |
| ODI score a , mean (SD) | 44.17 (18.31) | 52.49 (17.72) | .021 |
| EQ5D UK score b , mean (SD) | .46 (.31) | .26 (.22) | .053 |
| VAS score for back pain c , mean (SD) | 44.85 (29.30) | 55.91 (27.02) | .102 |
| VAS score for leg pain, mean (SD) | 69.30 (24.61) | 70.12 (28.43) | .738 |
Plus-minus values are means ± standard deviation.
Years : yr; Number: no; Kilo: kg; meter: m.
aScores on the Oswestry Disability Index (ODI) range from 0 to 100, with higher scores indicating more severe disability.
bScores on the European Quality of Life–5 Dimensions (EQ-5D) range from 0 to 1, with higher scores indicating better quality of life.
cScores on the visual analog scales (VASs) for back pain and leg pain range from 0 to 100, with higher scores indicating more severe pain.