Table 2:
Prevalence detected within the EHR of adverse events among patients prescribed statin medications or warfarin in two primary care organizations
| Adults with a Statin Medication | Adults with a Warfarin Medication | |||||
|---|---|---|---|---|---|---|
| Overall | Organization A | Organization B | Overall | Organization A | Organization B | |
| Number of Adults, n | 1,745 | 403 | 1,342 | 301 | 106 | 195 |
| Statin Complications, Any | 104 (6%) | 28 (7%) | 76 (6%) | - | - | - |
| Statin myopathy or myopathy diagnosis | 57 (3%) | 19 (5%) | 38 (3%) | - | - | - |
| Elevated Creatine Kinase2 | 2 (0%) | 0 (0%) | 2 (0%) | - | - | - |
| Elevated ALT3 | 41 (2%) | 9 (2%) | 32 (2%) | - | - | - |
| Elevated AST4 | 30 (2%) | 6 (1%) | 24 (2%) | - | - | - |
| Warfarin Complications, Any | - | - | - | 83 (28%) | 31 (29%) | 52 (27%) |
| Diagnosis of bleeding complications | - | - | - | 51 (17%) | 17 (16%) | 34 (17%) |
| Elevated INR5 | - | - | - | 45 (15%) | 18 (17%) | 27 (14%) |
| Received vitamin K | - | - | - | 5 (2%) | 5 (5%) | 0 (0%) |
1
The two year post period differed by organization and first medication date.