Table 2 Comparison of the proportion of examinations per nursing home bed in areas with and without mobile radiography services
| Â | With mobile radiography service | Without mobile radiography service | Diff. (% point) | 95% Confidence interval | P value | |||
|---|---|---|---|---|---|---|---|---|
n | Proportion of examinations per bed (%) | n | Proportion of examinations per bed (%) | Min. | Max. | |||
Nursing home beds | 14,500 | Â | 10,305 | Â | Â | Â | Â | Â |
All examinations | 7306 | 50.00 | 3760 | 36.00 | 14.0 | 12.7 | 15.10 | < 0.001 |
Plain radiographs | 6638 | 45.80 | 2962 | 28.70 | 17.10 | 15.8 | 18.20 | < 0.001 |
CT | 368 | 2.50 | 483 | 4.70 | −2.20 | −2.6 | −1.70 | < 0.001 |
Ultrasound | 206 | 1.40 | 225 | 2.20 | −0.80 | −1.0 | −0.40 | < 0.001 |
MRI | 53 | 0.37 | 43 | 0.42 | −0.05 | − 0.2 | 0.10 | 0.587 |
Nuclear medicine | 27 | 0.20 | 32 | 0.30 | −0.10 | − 0.3 | 0.01 | 0.065 |
Other | 14 | 0.10 | 15 | 0.15 | −0.05 | − 0.15 | 0.05 | 0.355 |