Table 2.

ECG Parameters of ERS probands with calcium mutations and healthy control.

Index	Healthy control (n = 150)	ERS probands with calcium mutation (n = 16)
		Single calcium mutation (n = 8)	P-value	With additional mutation(s) (n = 8)	P-value
HR (bpm)	72.7 ± 8.9	65.6 ± 16.1	0.0378	60.9 ± 9.6	<0.001
P wave (ms)	87.6 ± 9.1	90.9 ± 13.5	0.3318	89.4 ± 19.4	0.6133
PR interval (ms)	170.7 ± 18.7	178.0 ± 51.0	0.3448	184.3 ± 32.5	0.0567
QRS duration (ms)	89.4 ± 14.6	94.6 ± 16.1	0.3302	96.3 ± 25.9	0.2154
QTc interval (ms)	408.2 ± 21.4	386.8 ± 16.9	0.0061	389.5 ± 23.6	0.0177
Tp-e	82.3 ± 9.9	104.7 ± 18.5	<0.001	102.0 ± 27.6	<0.001
Tp-e/QT	0.22 ± 0.05	0.28 ± 0.04	0.0011	0.26 ± 0.07	0.0324

P-value is presented in bold if P < 0.05.