Table 2 Computed tomography scan utilization among various Alvarado Score categories
| Â | Â | Overall (n = 160) | Intervention arm (n = 80) | Usual care arm (n = 80) | P value |
|---|---|---|---|---|---|
Overall CT Utilization | Â | 149 (93.1) | 75 (93.7) | 74 (92.5) | 0.999 |
CT scans performed stratified by Alvarado Score Category | |||||
Alvarado Score | Number of patients in intervention arm | Number of CT scans done (%) | Number of patients in usual care arm | Number of CT scans done (%) | Â |
 1 to 3 | 3 | 1 (33.3) | 12 | 10 (83.3) | 0.012 |
 4 | 15 | 15 (100) | 14 | 13 (92.9) |  |
 5 | 24 | 23 (95.8) | 11 | 10 (90.9) |  |
 6 | 15 | 14 (93.3) | 16 | 16 (100) |  |
 7 | 15 | 15 (100) | 11 | 10 (90.9) |  |
 8 | 8 | 7 (87.5) | 12 | 12 (100) |  |
 9 | 0 |  | 4 | 3 (75) |  |