Table 4.
Utilization of Diagnostic Tests in the Previous Year Among Careseekers (n=590)
| Test | Percent Receiving (95% CI) | Number of testsa, mean (95% CI) |
|---|---|---|
| CT | 17.8 (14.3 – 21.3) | 1.5 (1.3 – 1.7) |
| MRI | 33.2 (28.8 – 37.6) | 1.3 (1.2 – 1.4) |
| CT and/or MRI | 36.2 (31.7 – 40.7) | 1.9 (1.7 – 2.1) |
| Spine radiographs | 45.8 (41.2 – 50.4) | 2.2 (1.9 – 2.5) |
| Spine radiographs and CT and/or MRI | 30.4 (26.1 – 34.7) | 4.6 (4.0 – 5.2) |
| Myeologram/discogram | 4.8 (2.9 – 6.7) | 1.2 (1.0 – 1.3) |
| Nerve conduction | 7.2 (4.9 – 9.5) | 1.1 (1.0 – 1.3) |
a
among those who received a test