Modality | No major diseases | Major diseases | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Physicians | General adults | Rate ratio | 95% CI | Pvalue | Physicians | General adults | Rate ratio | 95% CI | Pvalue | |
n = 1,636 | n = 1,640 | n = 50 | n = 46 | |||||||
X-ray | 359 | 549 | 0.65 | 0.63–0.67 | <0.001 | 1042 | 1330 | 0.78 | 0.70–0.87 | <0.001 |
Sonography | 138 | 148 | 0.93 | 0.88–0.98 | 0.009 | 432 | 435 | 0.99 | 0.83–1.19 | 0.94 |
Computed tomography | 21 | 17 | 1.23 | 1.06–1.43 | 0.004 | 178 | 169 | 1.06 | 0.79–1.41 | 0.69 |
Magnetic resonance imaging | 29 | 14 | 2.07 | 1.65–2.60 | <0.001 | 124 | 39 | 3.17 | 1.47–7.57 | 0.001 |
Radioisotope scanning | 9 | 7 | 1.30 | 0.91–1.87 | 0.14 | 56 | 126 | 0.44 | 0.22–0.87 | 0.01 |
Positron emission tomography | 0.12 | 0 | NA | NA | NA | 28 | 17 | 1.65 | 0.41–7.50 | 0.47 |
Interventional procedures | 11 | 16 | 0.69 | 0.58–0.82 | <0.001 | 37 | 60 | 0.61 | 0.34–1.08 | 0.08 |