Change in cumulative secondary prevention score (baseline to outcome) grouped by practice baseline performance quartile
| Quartile | Subjects (n) Intervention/ control | Mean change in cumulative rating | ||||
|---|---|---|---|---|---|---|
| Intervention | Control | p value 4-150 | ||||
| Top | 150/157 | 0.273 | −0.070 | 0.004 | ||
| Second | 128/126 | 0.609 | 0.095 | < 0.001 | ||
| Third | 167/154 | 0.671 | 0.162 | < 0.001 | ||
| Bottom | 148/143 | 0.784 | 0.077 | < 0.001 | ||
↵4-150 Independent samples t test.