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ATR grading of suspected scoliosis and distribution of suspected scoliosis sites.
| ATR grade | Thoracic segment | Thoracolumbar segment | Lumbar segment | Total number | χ 2 | p |
|---|---|---|---|---|---|---|
| Grade I | 198 (16.36%) | 272 (22.46%) | 362 (29.89%) | 832 (68.71%) | 7.075 | 0.132 |
| Grade II | 86 (7.10%) | 92 (7.60%) | 118 (9.74%) | 296 (24.44%) | ||
| Grade III | 29 (2.40%) | 24 (1.98%) | 30 (2.47%) | 83 (6.85%) |
