Table 3.
QTc-prolonging medication prescriptions by risk classification and time period
| Prevalence of prescriptions (%) | |||
|---|---|---|---|
| TdP Risk Classification | Up to 3 months prior to or at Cohort Entry Date | Up to 6 months prior to or at Cohort Entry Date | Up to 12 months prior to or at Cohort Entry Date |
| Known Risk | 22.1 | 26 | 30.6 |
| Possible Risk | 9.9 | 11.3 | 13.3 |
| Conditional Risk | 38.1 | 40.9 | 44.1 |
| Undetermined | 30.3 | 32.8 | 35.3 |
| Known or Possible | 28.4 | 32.6 | 37.3 |
| Any | 59.9 | 63 | 66 |