List of modifier genes associated with DCM
| Genes | Polymorphisms | Survival |
| ACE | I/D | 49% v 72% at 5 years |
| β 2 AR | I 1164 Thr | 42% v 76% at 1 year |
| AMPD 1 | Missense mutation | OR 8, 6 at 5 years |
ACE, angiotensin converting enzyme; AMPD 1, adenosine monophosphate deaminase 1; β 2 AR, β 2 adrenoreceptor.