Table 1 Different QT correction formulas
From: The best QT correction formula in a non-hospitalized population: the Fasa PERSIAN cohort study
Corrections | Formulas |
|---|---|
Exponential | |
 Bazett [30] (QTcB) | QTcB = QT/RR0.50 |
 Fridericia [79] (QTcFri) | QTcFri = QT/RR0.333 |
 Dmitrienko [80] (QTcD) | QTcD = QT/RR0.413 |
Linear | |
 Framingham [37] (QTcFra) | QTcFra = QT + 0.154 (1-RR) |
 Hodges [38] (QTcH) | QTcH = QT + 0.00175 (HR-60) |
 Rautaharju [81] (QTcR) | QTcR = QT − 0.185 (RR-1) + ka |