Table 2 Geographical variation in number of single examinations1 per 1000 inhabitants, in the counties with highest and lowest values, high/low ratio and COV within counties
From: Geographical variation in radiological services: a nationwide survey
Highest | Lowest | High/low ratio | COV (%) | |
|---|---|---|---|---|
MRI Knee | 37 | 0.1 | 304.1 | 103 |
US Pelvis | 17 | 0.2 | 86.7 | 79 |
MRI Cervical spine | 21 | 0.2 | 139.0 | 79 |
XR Lumbar spine | 29 | 2.0 | 14.4 | 78 |
US Upper urinary tract | 22 | 2.8 | 8.0 | 57 |
CT Lumbar spine | 34 | 3.5 | 9.6 | 51 |
US Mammae | 21 | 2.5 | 8.3 | 50 |
MRI Head/brain | 26 | 0.8 | 32.4 | 47 |
CT Pelvis | 22 | 4.4 | 5.0 | 45 |
XR Lumbar spine with sacrum | 39 | 7.0 | 5.5 | 44 |
XR Cervical spine | 43 | 9.6 | 4.5 | 40 |
XR Pelvis | 54 | 13.9 | 3.9 | 37 |
CT Abdomen | 24 | 7.5 | 3.2 | 34 |
CT Thorax | 20 | 6.1 | 3.3 | 33 |
XR Thorax, front | 71 | 14.3 | 4.9 | 32 |
XR Shoulder | 46 | 13.9 | 3.3 | 31 |
XR Thoracic spine | 14 | 4.9 | 2.9 | 31 |
US Abdomen | 39 | 9.7 | 4.0 | 30 |
XR Urinary tract/urography | 18 | 7.2 | 2.5 | 27 |
XR Mammography | 105 | 33.2 | 3.2 | 27 |
XR Knee | 57 | 21.5 | 2.7 | 26 |
CT Head/brain | 52 | 19.7 | 2.7 | 25 |
XR Foot | 38 | 16.2 | 2.3 | 25 |
XR Ankle | 36 | 16.6 | 2.2 | 23 |
XR Hip | 64 | 28.7 | 2.2 | 23 |
XR Lower leg | 13 | 5.3 | 2.4 | 23 |
XR Hand/fingers | 41 | 13.7 | 3.0 | 22 |
XR Elbow | 13 | 5.7 | 2.3 | 22 |
XR Wrist | 33 | 12.2 | 2.7 | 22 |
XR Thorax, two projections | 160 | 82.2 | 1.9 | 16 |