TABLE 2.
Adjusted Mean Difference in Categories of Ambulatory Spine-Related Spending After Relocation (postrelocation year – baseline year) to Areas of Higher or Lower Chiropractic Care Accessibilitya
| Evaluation and Management | Medical Procedures | Imaging and Testing | ||||
|---|---|---|---|---|---|---|
| Starting Chiropractic Care Accessibility | Mean Difference ($) | P | Mean Difference ($) | P | Mean Difference ($) | P |
| Resident of quintile 1, lowest | ||||||
| Moved to area of higher chiropractic accessibility | 9 | .55 | −36 | .49 | 6 | .67 |
| Resident of quintile 2 | ||||||
| Moved to area of lower chiropractic accessibility | 4 | .76 | 28 | .57 | 20 | .11 |
| Moved to area of higher chiropractic accessibility | −2 | .82 | −34 | .29 | −30 | <.001 |
| Resident of quintile 3 | ||||||
| Moved to area of lower chiropractic accessibility | 9 | .36 | 12 | .70 | 3 | .67 |
| Moved to area of higher chiropractic accessibility | 11 | .19 | 3 | .91 | 1 | .88 |
| Resident of quintile 4 | ||||||
| Moved to area of lower chiropractic accessibility | 11 | .14 | 37 | .14 | 18 | <.01 |
| Moved to area of higher chiropractic accessibility | 4 | .66 | 40 | .18 | 21 | <.01 |
| Resident of quintile 5, highest | ||||||
| Moved to area of lower chiropractic accessibility | −11 | .14 | −53 | .04 | −8 | .22 |
a
Adjusted for age, sex, race, baseline comorbidity, change in comorbidity, and primary care physician accessibility.