Baseline features of the study population (n = 1299)
| Overall (n = 1299) | Scoliotics (n = 259) | Nonscoliotics (n = 1040) | P | |
|---|---|---|---|---|
| Mean age (years) | 53.14 ± 15.441 | 63.25 ± 15.356 | 50.62 ± 14.404 | .000 |
| Age groups | ||||
| Young adults | 31.3% (406) | 14.3% (37) | 35.5% (369) | .000 |
| Middle-aged | 37.6% (489) | 25.1% (65) | 40.8% (424) | |
| Older-age group | 31.1% (404) | 60.6% (157) | 23.8% (247) | |
| Gender | ||||
| Male | 38.1% (495) | 29.7% (77) | 40.2% (418) | .002 |
| Female | 61.9% (804) | 70.3% (182) | 59.8% (622) | |
| Spondylolisthesis | ||||
| Yes | 15.3% (199) | 32.4% (84) | 11.1% (115) | .000 |
| No | 84.7% (1100) | 67.6% (175) | 88.9% (925) | |
| Spondylolisthesis levels | ||||
| L3/L4 | 7.5% (15) | 8.3% (7) | 7% (8) | .025 |
| L4/L5 | 43.7% (87) | 56% (47) | 34.8% (40) | |
| L5/S1 | 35.2% (70) | 22.6% (19) | 44.3% (51) | |
| Multiple-level | 10.1% (20) | 9.5% (8) | 10.4% (12) |