Table 2 Summary of outcomes and serum digoxin concentration
Serum digoxin concentration, ng/mL | <0.60 | 0.60–0.89 | 0.90–1.19 | ≥1.20 |
|---|---|---|---|---|
Death | 5 | 7 | 6 | 4 |
Cause of death | ||||
 Heart failure | 1 | 2 | 1 | 1 |
 Sudden cardiac death | 1 | 3 | 1 | 0 |
 Noncardiac causes | 3 | 2 | 4 | 3 |
Digoxin intoxication | 3 | 1 | 5 | 8 |
Type of digoxin intoxication | ||||
 Cardiac disturbance | 2 | 1 | 4 | 3 |
 Gastrointestinal symptoms | 0 | 0 | 1 | 4 |
 Others | 1 | 0 | 0 | 1 |