Table 3.
Change in risky metformin-prescribing events
| All | Intervention group |
|||
|---|---|---|---|---|
| A | B | C | ||
| Metformin fill among those with a prior serum creatinine test ≥1.5 mg/dl (n) | 264 | 77 | 100 | 87 |
| 12 months preintervention (%) | 13.8 | 6.4 | 14.8 | 19.3 |
| 12 months postintervention (%) | 6.7 | 6.4 | 4.8 | 9.0 |
| Change in metformin fill rate (%) | −7.1 | 0 | −10.0 | −10.3 |
| Time P = 0.002 | Condition P = 0.23 | Time-by-condition P = 0.08 | ||
| Metformin fill following a CHF diagnosis (n) | 259 | 73 | 107 | 79 |
| 12 months preintervention (%) | 16.6 | 15.8 | 15.3 | 19.0 |
| 12 months postintervention (%) | 12.6 | 16.4 | 11.6 | 10.5 |
| Change in metformin fill rate (%) | −4.0 | +0.6 | −3.7 | −8.5 |
| Time P = 0.11 | Condition P = 0.88 | Time-by-condition P = 0.36 | ||