. 2020 Sep 30;134(4):482–489. doi: 10.1016/j.amjmed.2020.08.043

Table 4.

Comparison of Arrhythmias Categories Between the Study Period (2020) and the Control Period (2019)

	All, n (%)	Study Period, 2020	Control Period, 2019	OR (95% CI)	P
Categories of arrhythmia
Atrial arrhythmia, n (%) IRR (95% CI)	1193 (76)	487 (78)	706 (74)	1.21 (0.96-1.54)	0.11
Atrial arrhythmia, n (%) IRR (95% CI)	1193 (76)	0.69 (0.6-0.77)
Ventricular arrhythmia, n (%) IRR (95% CI)	177 (11)	70 (11)	107 (11)	0.99 (0.76-1.30)	0.96
Ventricular arrhythmia, n (%) IRR (95% CI)	177 (11)	0.65 (0.48-0.88)
Bradycardia, AV blocks, n (%) IRR (95% CI)	204 (13)	68 (11)	136 (14)	0.73 (0.53-1.00)	<0.05
Bradycardia, AV blocks, n (%) IRR (95% CI)	204 (13)	0.50 (0.37-0.67)

AV = atrioventricular; IRR = incident rate ratio; 95% CI = 95% confidence interval.