Table 2.

Clinical outcomes in the SQTI and normal QT groups

	SQTI group (n = 34)	Normal QT group (n = 136)	P
Arrhythmia outcomes
AF	4 (11.8)	3 (2.2)	0.030
VA/SCA	3 (8.7)	0 (0)	0.007
Significant AVBa	3 (8.7)	8 (5.9)	0.461
Non-cardiac death	0 (0.0)	7 (5.1)	0.347

The results are presented as median (interquartile range) for continuous data and as frequency (percentage) for categorical data

AF atrial fibrillation, AVB atrioventricular block, SCA sudden cardiac arrest, SQTI short QT interval, VA ventricular arrhythmia

^aMobitz type 2 s-, high-, and third-degree AVB