Mean Difference between 12-lead ECG and 7-lead ECG Mean Difference between 12-lead ECG and Telemetry Lead II p-value†
Δ Uncorrected QT (msec) 13.03 ± 31.87* 19.09 ± 33.67* 0.0101
QTc (Bazett) (msec) 13.45 ± 32.05* 19.62 ± 33.19* 0.0195
Δ QTc (Fredericia) (msec) 13.02 ± 29.37* 19.22 ± 30.85* 0.0137
Δ QTc (Hodges) (msec) 13.08 ± 26.97* 18.44 ± 28.40* 0.0214
Δ QTc (Framingham) (msec) 10.73 ± 26.51* 16.74 ± 27.66* 0.0137