Table 3.
Utilization and clinical outcomes of participants randomized to SynDA tool vs. Control.
| Outcome Variable | SynDA Group n=24 | Control Group n=26 | Difference between groups (95%CI) |
|---|---|---|---|
| Utilization Outcomes | |||
| Index Visit | |||
| Admitted to hospital | 0 (0%) | 0 (0%) | 0% |
| Sent to observation unit | 4 (17%) | 7 (27%) | 10.3% (−13, 32) |
| Discharged from ED | 20 (83%) | 19 (73%) | −10.3% (−32, 13) |
| CT scan | 1 (4.2%) | 1 (3.8%) | −0.3% (−1.6, 1.5) |
| 30-day follow-up period | n=20 | n=24 | |
| Repeat ED visit | 1 (5.0%) | 2 (8.3%) | 3.3% (−16, 21) |
| Office visit | 14 (70%) | 17 (71%) | 0.8% (−24, 27) |
| Hospital admission | 1 (5.0%) | 1 (4.2%) | −0.8% (−20, 16) |
| Clinical Outcomes at 30 days | |||
| New significant diagnosis | 2 (10%) | 2 (8.4%) | −1.7% (−23, 17) |
| -Acute stroke | 1 (5.0%) | 0 (0%) | −5% (−24, 9.4) |
| -Heart failure | 1 (5.0%) | 0 (0%) | −5% (−24, 9.4) |
| -Cardiac arrhythmia | 0 (0%) | 1 (4.2%) | 4.2% (−12, 20) |
| -Large pericardial effusion | 0 (0%) | 1 (4.2%) | 4.2% (−12, 20) |
| Mortality | 0 (0%) | 0 (0%) | 0% |
| Patient Involvement (Index Visit) | n=22 | n=22 | |
| OPTION-5 Score, mean (SD) Range: 0-100 (Audio recording) | 52.0 (SD=18) | 26.6 (SD=21) | −25.4 (−13.5, −37.3) |
| Duration of discussion, median (IQR) minutes:seconds | 5:26 | 3:29 | Wilcoxon two-sample test, p=0.003 |
ED: Emergency Department; CT: Computed tomography; OPTION-5: Observing Patient Involvement in Decision-Making; SD: Standard Deviation; IQR: Interquartile Range.