Table 4. ECG quantification of Dnajb6 heterozygous mice at 6 months of age.

Genotype	Age	N	SA incidence (%)	AVB incidence (%)	Heart rate(bpm)
WT	6 m	20	1 (5.0)	0	516.3±34.3
Dnajb6+/-	6 m	44	15 (34.1)*	3 (6.8)	494.8±38.3*

N=20-44.

^*, p<0.05, data are expressed as mean ± SEM. For SA incidence comparison, Chi-square test. For heart rate comparison, unpaired student’s t-test.

SA, sinus arrest. AVB, atrioventricular block. bpm, beats per minute.