Table 1. Comparison of ECG features between p.D1816VfsX7 mutation carriers and non carriers.

ECG parameters	p.D1816VfsX7 non carriers	p.D1816VfsX7 carriers
N	8	8
Spontaneous Brugada pattern	0	0
PR interval (ms)	150±29	197±27*
QRS interval (ms)	91±12	113±16*
QTc interval (ms)	392.3±9.0	398.7±6.1
Atrial fibrillation (%)	0 (0%)	2 (25%)

Values are the mean±SEM of 8 non carriers and 8 carriers in each case. * P<0.05 vs non carriers.