46 CHAPTER 3 SUPPLEMENTARY FILES S1: BASELINE CHARACTERISTICS OF HOSPITALISED COVID-19 PATIENTS STRATIFIED BY THE OCCURRENCE OF DIFFERENT SUBTYPES OF CARDIAC ELECTRICAL EVENTS. Total (n=5,782) No arrhythmic event (n=4,800) AF/AFL (n=692) Ventricular arrhythmia (n=46) Conduction disorder (n=365) Demographics Male sex n (%) 3,686 (63.8) 2,990 (62.3) 482 (69.7) 38 (82.6) 269 (73.7) Age in years median (IQR) 67 (56-76) 65 (54-75) 74 (69-81) 71.5 (61.3-76.8) 76 (70-83) History of supraventricular tachycardia AF n (%) 616 (10.7) 326 (6.8) 257 (37.2) 5 (10.9) 77 (21.2) AFL n (%) 52 (0.9) 21 (0.4) 23 (3.3) 1 (2.2) 13 (3.6) Atrial tachycardia n (%) 21 (0.4) 17 (0.4) 3 (0.4) 0 (0.0) 1 (0.3) AV nodal re-entry tachycardia n (%) 22 (0.4) 18 (0.4) 4 (0.6) 0 (0.0) 1 (0.3) History of ventricular tachycardia Non-sustained ventricular tachycardia n (%) 21 (0.4) 13 (0.3) 7 (1.0) 1 (2.2) 4 (1.1) Sustained ventricular tachycardia n (%) 15 (0.3) 10 (0.2) 0 (0.0) 3 (6.5) 3 (0.8) Ventricular fibrillation n (%) 24 (0.4) 16 (0.3) 6 (0.9) 1 (2.2) 2 (0.5) History of conduction disorders 1st AV block n (%) 19 (0.3) 12 (0.3) 2 (0.3) 0 (0.0) 7 (1.9) 2nd AV block n (%) 13 (0.2) 9 (0.2) 2 (0.3) 0 (0.0) 3 (0.8) 3rd AV block n (%) 26 (0.4) 20 (0.4) 2 (0.3) 0 (0.0) 5 (1.4) Left bundle branch block n (%) 24 (0.4) 11 (0.2) 5 (0.7) 0 (0.0) 12 (3.3) Right bundle branch block n (%) 18 (0.3) 10 (0.2) 4 (0.6) 0 (0.0) 7 (1.9) Other medical history Heart failure n (%) 315 (5.5) 190 (4.0) 88 (12.7) 4 (8.7) 58 (15.9) Hypertension n (%) 2,692 (47.6) 2,114 (45.0) 407 (60.2) 23 (53.5) 228 (63.9)
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