TABLE 2.

Table describing the mean and standard error of baseline measurements of myocytes from mouse, rat, guinea pig, and human hearts measurements of functional parameters.

			Simple statistics			Hierarchical statistics				p values
Sample	Prep.	n	%	TTP90	TTB90	% (ICC)	TTP90 (ICC)	TTB90 (ICC)	Suit.	p values
Rat	5	226	3.670 ± 0.180	0.056 ± 0.001	0.182 ± 0.003	3.148 ± 0.730 (18.5)	0.048 ± 0.008 (28.2)	0.151 ± 0.021 (16.7)	YYY	Rat vs. rat + fura
Rat + Fura	7	510	4.751 ± 0.137	0.057 ± 0.001	0.222 ± 0.003	4.026 ± 0.518	0.053 ± 0.006	0.206 ± 0.015		parameter Simple Hierarchical
										% < 0.0001 0.051
										TTP90 0.55 0.64
										TTB90 < 0.0001 0.06
Mouse LV	3	165	2.539 ± 0.191	0.048 ± 0.001	0.305 ± 0.012	2.854 ± 0.930 (30.9)	0.049 ± 0.002 (3.4)	0.338 ± 0.006 (30.3)	YNY	Mouse LV vs. mouse RV
Mouse RV	3	84	3.250 ± 0.346	0.054 ± 0.002	0.391 ± 0.023	3.164 ± 0.937	0.054 ± 0.002	0.406 ± 0.061		parameter Simple Hierarchical
										% 0.0519 0.82
										TTP90 0.0013 0.15
										TTB90 0.0002 0.46
Guinea Pig	1	71	5.213 ± 0.360	0.228 ± 0.010	0.627 ± 0.021	–	–	–	–	–
Human LV	1	4	3.202 ± 0.994	0.244 ± 0.040	0.687 ± 0.074	–	–	–	–	–
Human LA	1	14	0.430 ± 0.161	0.062 ± 0.016	0.446 ± 0.153	–	–	–	–	–
Human RA	1	5	2.500 ± 0.832	0.218 ± 0.121	0.637 ± 0.131	–	–	–	–	–

The table describes the statistics generated by conventional and advanced (hierarchical) approaches and includes the results of statistical significance between appropriate samples. The column (suit.) describes whether the advanced test (Y) or the conventional test (N) is sufficient in each case. Results from several preparations are presented using simple statistics (mean ± standard deviation) and using hierarchical statistics (mean ± standard deviation and ICC). The p values column presents the calculations of p using Student’s t test or the hierarchical method. Significance is commonly reduced using hierarchical statistics.