Table 4 Radiology orders during the study periods
From: The impact of a multimodal intervention on emergency department crowding and patient flow
Categories of imaging procedures n (%)a | Pre-intervention period n = 20,080 | Intervention period n = 20,590 | Odds ratio (95% CI) | p valueb |
|---|---|---|---|---|
Plain radiograph | 11,327 (56.4) | 10,962 (53.0) | 0.87 (0.84–0.91) | < 0.001 |
CT* | 6094 (30.3) | 6670 (32.2) | 1.09 (1.05–1.14) | < 0.001 |
Ultrasonography | 2511 (12.5) | 2799 (13.5) | 1.10 (1.03–1.16) | 0.002 |
Other imaging procedurec | 150 (0.7) | 256 (1.2) | 1.67 (1.36–2.04) | < 0.001 |