Table 1. Summary of clinical parameters in the clusters.
PTC: proximal thoracic Cobb angle, PTR: proximal thoracic apical rotation, MTC: main thoracic Cobb angle, MTR: main thoracic apical rotation, LC: lumbar Cobb angle, LR: lumbar apical rotation, TK thoracic kyphosis, LL lumbar lordosis, PI: pelvic incidence, SS: sacral slope, PT, pelvic tilt, PO: pelvic obliquity, FB: frontal balance, SB: sagittal balance.
| Cluster | PTC° | PTR° | MTC° | MTR° | LC° | LR° | TK° (T1-T4) | TK° (T4-T12) | LL° (L1-S1) | PI° | SS° | PT° | PO° | FB (mm) | SB (mm) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All | G0, N = 103 | 3.1±9.9 | 0.7±12.5 | 58.7±18.9 | 12.5±11.6 | 41.8±17.2 | 10.9±13.7 | 11.4±19.7 | 14.7±17.2 | 54.5±23.2 | 51.7±25.4 | 44.4±20.6 | 7.3±20.1 | 3.9±7.3 | 0.0±19.0 | -4.1±12.3 |
| 2 Clusters | G1, N = 45 | 2.7±6.8 | 1.0±6.5 | 61.3±13.9 | 15.5±8.1 | 39.8±12.5 | 11.3±8.3 | 15.6±12.9 | 18.8±8.2 | 57.5±16.5 | 50.9±19.4 | 45.2±15.9 | 5.6±11.3 | 3.3±5.0 | -12.5±11.3 | -10.4±9.4 |
| G2, N = 58 | 3.3±7.8 | 0.5±10.6 | 56.8±12.8 | 10.1±8.5 | 43.3±11.6 | 10.5±10.9 | 8.7±11.8 | 9.6±7.1 | 52.1±15.1 | 52.4±16.4 | 43.7±13.2 | 8.7±16.7 | 4.4±5.4 | 9.7±15.3 | 0.9±7.8 | |
| 3 Clusters | G1, N = 45 | 2.7±6.8 | 1.0±6.5 | 61.3±13.9 | 15.5±8.1 | 37.8±12.5 | 11.3±8.3 | 15.6±12.9 | 18.8±8.2 | 57.5±16.5 | 50.9±19.4 | 45.2±15.9 | 5.6±11.3 | 3.3±5 | -12.5±11.3 | -10.4±9.4 |
| G2.1, N = 11 | 5.2±3.3 | 1.6±5.9 | 58.9±7.5 | 11.7±5.4 | 44.2±7.5 | 11.6±5.4 | 9.6±8.2 | 12.6±5.4 | 51.5±7.8 | 48.9±11.2 | 43.1±7.4 | 5.1±8.5 | 5.1±4.2 | 40.8±11.1 | -5.2±3.5 | |
| G2.2, N = 47 | 2.9±7.3 | 0.3±8.9 | 56.3±10.5 | 9.8±6.4 | 42.1±8.8 | 10.2±9.5 | 8.3±12.3 | 8.6±9.7 | 52.3±13.9 | 53.2±11.9 | 43.8±10.9 | 9.5±14.3 | 4.3±3.6 | 2.5±10.6 | 2.3±7.2 | |
| 5 Clusters | G1.1, N = 24 | 5.1±5.5 | 0±5.4 | 59.3±8.3 | 14.7±6.1 | 40.5±7.7 | 12.0±5.6 | 16.7±7.7 | 21.7±6.5 | 59.5±12.5 | 48.7±13.2 | 44.8±11.6 | 3.5±8.1 | 3.1±3.0 | -9.9±8.1 | -11.1±8.0 |
| G1.2, N = 21 | 0.0±4.1 | 2.1±3.7 | 63.5±10.2 | 16.5±5.3 | 38.3±9.8 | 10.6±6.1 | 14.4±9.6 | 15.4±7.0 | 55.2±11.3 | 53.5±14.3 | 45.7±10.9 | 7.9±7.9 | 3.5±4.1 | -15.5±8.4 | -9.6±4.7 | |
| G2.1, N = 11 | 5.2±3.3 | 1.6±5.9 | 58.9±7.5 | 11.7±5.4 | 44.2±7.5 | 11.6±5.4 | 9.6±8.2 | 12.6±5.4 | 51.5±7.8 | 48.9±11.2 | 43.1±7.4 | 5.1±8.5 | 5.1±3.9 | 40.8±10.5 | -5.2±3.5 | |
| G2.2.1, N = 20 | 3.8±5.1 | 0.1±5.1 | 57.9±8.3 | 10.8±4.3 | 41.4±4.7 | 10.5±7.1 | 8.1±6.4 | 8.5±6.1 | 53.2±9.5 | 51.5±7.3 | 43.5±8.6 | 7.7±12.4 | 2.7±2.4 | -10.8±8.1 | 4.8±5.8 | |
| G2.2.2, N = 27 | 2.2±5.2 | 0.5±7.3 | 54.3±6.4 | 9.3±4.8 | 44.2±7.5 | 10.0±6.3 | 8.6±8.0 | 8.9±7.7 | 51.6±10.2 | 54.4±9.5 | 44.1±6.8 | 10.9±7.3 | 5.4±3.6 | 12.3±7.1 | 0.4±4.3 | |
| Control | N = 20 | - | - | - | - | - | - | 13.4±4.6 | 21.2±7.2 | 53.9±12.3 | 45.1±8.9 | 33.2±9.8 | 12.5±9.1 | 0±2.8 | 0±7.2 | -14.8±4.8 |
Significant differences are shown in bold (p<0.05)