HQ: hydroxychloroquine; HR: heart rate; bpm:beat per minute; ms: milliseconds; PR: PR interval on the electrocardiogram; QTc: corrected QT interval on the electrocardiogram; ΔHR: baseline-final HR; ΔPR:final-baseline PR; ΔQTc: Final-Baseline QTc; AV:atrioventricular; VT: ventricular tachycardia.*p-value is the comparison between favipiravir and hydroxychloroquine group. Values are presented as the mean ± SD, median (IQR), or n (%).