Table 1 Analysis of the utilisation of radiographs (number of radiographs per 10,000 patients) in chiropractic practice in the period from 2010 to 2020
Coefficient | 95% CI | P-value | ||
|---|---|---|---|---|
Pre-intervention slope | -2.20 | -2.87; -1.53 | < 0.01 | |
Intervention 1 (January 2014) | ||||
Level change after first intervention | -28.37 | -55.18; -15.48 | 0.04 | |
Slope change after first intervention | 1.30 | 3.86; 0.00 | < 0.01 | |
Slope after first intervention | -0.91 | -1.60; -0.21 | 0.01 | |
Intervention 2 (December 2016) | ||||
Level change after second intervention | -14.71 | -35.02; 5.59 | 0.15 | |
Slope change after second intervention | -0.78 | -1.64; 0.01 | 0.08 | |
Slope after second intervention | -1.69 | -2.21; -1.17 | < 0.01 |