Parameter or type | No. of patients (%) | p value | |
---|---|---|---|
Not taking QT-prolonging drugs n = 10 | Taking QT-prolonging drugs n = 25 | ||
Electrocardiogram parameter | |||
PR, ms; median (P25, P75) | 140 (123, 176) | 142 (130, 162) | 0.9 |
QRS, ms; median (P25, P75) | 98 (90, 107) | 142 (80, 107.5) | 0.2 |
QT, ms; median (P25, P75) | 340 (310, 395) | 370 (305, 400) | 0.6 |
QTc, ms; median (P25, P75) | 410 (364.5, 429.5) | 455 (423, 479.8) | 0.01 |
HR, beats/min; median (P25, P75) | 79 (62.5, 123.5) | 91 (75.5, 105.5) | 0.3 |
Type of arrhythmia | |||
fPAC | 3 (30.3) | 14 (56.0) | 0.3 |
AT/AF | 3 (30.3) | 9 (36.0) | > 0.99 |
fPVC | 1 (10.0) | 3 (12.0) | 0.6 |
VT/VF | 0 (0.0) | 4 (16.0) | 0.5 |
Note: AT/AF = atrial tachycardia/atrial fibrillation, fPAC = frequent premature atrial complex, fPVC = frequent premature ventricular complex, HR = heart rate, P25 = 25th percentile, P75 = 75th percentile, VT/VF = ventricular tachycardia/ventricular fibrillation. We used the Mann–Whitney U test to compare the medians between groups. We used the Fisher exact test to compare the percentages.