Positive predictive values of algorithms for primary diagnosis codes of safety and effectiveness outcomes based on physician-led chart reviews
| Clinical outcome | Mercy Health | Mayo Clinic | Yale New Haven Hospital |
| Acute heart failure | 21/21 (100%; 95% CI, 80.8% to 100%) | 25/25 (100%; 95% CI, 83.4% to 100%) | 8/10 (80.0%; 95% CI, 44.2% to 96.5%) |
| Ischaemic stroke | 22/24 (91.7%; 95% CI, 71.5% to 98.5%) | 7/24 (29.2%; 95% CI, 13.4% to 51.2%) | 4/4 (100%; 95% CI, 39.6% to 100%) |
| Arrhythmia hospitalisation | 9/21 (42.9%; 95% CI, 22.6% to 65.6%) | 21/25 (84.0%; 95% CI, 63.1% to 94.7%) | 4/15 (26.7%; 95% CI 8.9% to 55.2%) |
| Cardiac tamponade | None reported | Not explored | 2/2 (100%; 95% CI, 19.8% to 100%) |