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Demographic Data for Both Groups.
| Group 1 (n = 26) | Group 2 (n = 18) | P | |
|---|---|---|---|
| Age (years) | 17.8 ± 4.8 | 20.5 ± 9.6 | .26 |
| Gender | .35 | ||
| Male | 18 | 11 | |
| Female | 8 | 7 | |
| Follow-up (years) | 3.5 ± 1.5 | 3.16 ± 1.7 | .64 |
Abbreviations: LIV, lowest instrumented vertebra; SSV, sagittal stable vertebrae; Group 1, LIV distal to or at the SSV; Group 2, LIV proximal to the SSV.
