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Frequency of specific diagnostic testing within the population of all ED patients with low back pain related disorders.
| Diagnostic test | N | % (95%CI) |
|---|---|---|
| Laboratory test | ||
| Urinalysis | 733 | 18.8% (17.0, 20.6%) |
| Complete Blood Count | 419 | 9.7% (8.5, 11.1%) |
| Creatinine | 225 | 5.2% (4.3, 6.3%) |
| Imaging | ||
| Plain radiograph | 1245 | 30.5% (28.1, 32.9%) |
| CT or MRI | 267 | 6.1% (5.1, 7.1%) |
