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Count of patients by spinal segment diagnoses
| Group | Patients |
|---|---|
| Back only | 2,067,504 |
| Neck only | 420,745 |
| Segment not-specified only | 181,900 |
| Back and Neck | 76,363 |
| Back and not-specified | 25,566 |
| Neck and not-specified | 5,128 |
| Back, Neck, and not-specified | 1,914 |
| Total | 2,779,120 |
