Level | Characteristic | Number of fusion segments = 1 | Number of fusion segments = 2 | ||||
---|---|---|---|---|---|---|---|
Patients with ASD | Control | P value | Patients with ASD | Control | P value | ||
L1–2 | rCSA | 21.50 ± 11.61 | 20.91 ± 8.51 | 0.874 | 23.65 ± 5.85 | 22.05 ± 7.47 | 0.506 |
rFI | 34.38 ± 9.26 | 31.46 ± 6.84 | 0.335 | 35.40 ± 9.41 | 31.62 ± 5.70 | 0.179 | |
L2–3 | rCSA | 25.48 ± 12.54 | 26.20 ± 6.87 | 0.847 | 31.12 ± 8.98 | 32.64 ± 9.53 | 0.647 |
rFI | 34.20 ± 7.43 | 30.94 ± 5.88 | 0.193 | 35.92 ± 5.02 | 34.16 ± 5.78 | 0.364 | |
L3–4 | rCSA | 25.09 ± 6.21 | 32.52 ± 9.39 | 0.016* | 30.41 ± 7.00 | 32.17 ± 6.71 | 0.474 |
rFI | 37.49 ± 7.02 | 29.12 ± 6.89 | 0.003* | 40.22 ± 5.19 | 35.82 ± 4.81 | 0.019* | |
L4–5 | rCSA | 26.23 ± 8.41 | 34.54 ± 6.92 | 0.006* | 33.43 ± 6.91 | 34.81 ± 6.79 | 0.571 |
rFI | 39.23 ± 6.29 | 30.51 ± 7.14 | 0.001* | 43.77 ± 5.97 | 33.99 ± 6.40 | < 0.001* | |
L5–S1 | rCSA | 29.32 ± 8.29 | 37.82 ± 8.83 | 0.011* | 29.61 ± 7.58 | 31.34 ± 8.84 | 0.556 |
rFI | 38.43 ± 5.67 | 31.20 ± 5.11 | 0.001* | 39.45 ± 9.50 | 34.01 ± 7.49 | 0.082 |