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Number of QTc-prolonging medications taken by patients according to time interval
| Total number of QTc- prolonging medications (known or possible risk of TdP) | Proportion of patients (%) by time-frame prior to or at diagnosis | ||
|---|---|---|---|
| 3 months | 6 months | 12 months | |
| 1 | 21.2 | 22.8 | 23.9 |
| 2 | 5.7 | 7.3 | 9.2 |
| 3 | 1.3 | 1.9 | 3.0 |
| ≥4 | 0.3 | 0.6 | 1.3 |
TdP, torsades de pointes
