Table 1.

iPSC-CM beating rate, percentage of cells beating, and shortening velocity at 1 and 2 wk after plating for N1 and M1

	Week 1		Week 2
	N1	M1	N1	M1
BPM	15.80 ± 3.63	10.77 ± 2.92a	14.87 ± 5.28	13.80 ± 4.59
N	15	13	15	15
% Cells beating	89.67 ± 13.77	10.35 ± 8.84b	77.87 ± 20.14	16.46 ± 7.98c
N	8	n = 8	4	4
Shortening velocity, μm/s	2.06 ± 0.65	0.93 ± 0.39d	1.77 ± 0.47	1.80 ± 0.56
N	42	36	42	40

Values are means ± SD.

M1 or M2, mutant cell line number; N1 or N2, normal cell line number; BPM, beats per minute.

^aP < 0.001 vs. N1 (week 1), % cells beating:

^bP < 0.001 vs. N1 (week 1);

^cP < 0.001 vs. N1 (week 2); shortening velocity:

^dP < 0.001 vs. N1 (week 1).