Table 3 Comparisons of spinopelvic parameters and LDI in the different groups
| Â | Total | ASD | Non-ASD | P |
|---|---|---|---|---|
PI (°) | 54.13 ± 9.57 | 55.49 ± 8.22 | 53.26 ± 7.13 | 0.251 |
Pre LL (°) | 38.71 ± 6.96 | 37.17 ± 7.31 | 38.85 ± 6.93 | 0.341 |
Pre LLL (°) | 25.22 ± 4.82 | 23.71 ± 4.55 | 25.36 ± 4.83 | 0.177 |
Pre LDI | 0.66 (0.60–0.71) | 0.65 ± 0.11 | 0.66 (0.60–0.71) | 0.682 |
Pre LDI group (low LDI, moderate LDI, high LDI), n (%) | 0.252 | |||
 Low LDI < 0.5 | 13 (6.5) | 2 (11.8) | 11 (6.0) |  |
 0.5 ≤ moderate LDI ≤ 0.8 | 172 (86.0) | 13 (76.4) | 159 (86.9) |  |
 High LDI > 0.8 | 15 (7.5) | 2 (11.8) | 13 (7.1) |  |
Pre LDI group (normal LDI, abnormal LDI ) n (%) | 0.267 | |||
0.5 ≤ normal LDI ≤ 0.8 | 172 (86.0) | 13 (76.5) | 159 (86.9) |  |
 Abnormal LDI (< 0.5, > 0.8) | 36 (14.0) | 4 (23.5) | 24 (13.1) |  |
Post LL (°) | 42.67 ± 8.51 | 40.35 ± 7.96 | 42.88 ± 8.55 | 0.241 |
Post LLL (°) | 28.82 ± 5.90 | 27.69 ± 5.68 | 28.93 ± 5.93 | 0.410 |
Post LDI | 0.69 ± 0.13 | 0.71 ± 0.19 | 0.68 ± 0.12 | 0.578 |
Post LDI group (low LDI, moderate LDI, high LDI), n (%) | 0.001 | |||
 Low LDI < 0.5 | 16 (8.0) | 4 (23.5) | 12 (6.6) |  |
 0.5 ≤ moderate LDI ≤ 0.8 | 146 (73.0) | 6 (35.3) | 140 (76.5) |  |
 High LDI > 0.8 | 38 (19.0) | 7 (41.2) | 31 (16.9) |  |
Post LDI group (normal LDI, abnormal LDI) n (%) | 0.001 | |||
 0.5 ≤ normal LDI ≤ 0.8 | 146 (73.0) | 6 (35.3) | 140 (76.5) |  |
 Abnormal LDI(< 0.5, > 0.8) | 54 (27.0) | 11 (64.7) | 43 (23.5) |  |