Table 2 Min-max, median, and interquartile range (Q1–Q3) of the DFA scaling exponents α1 and α2 for ECGs (n = 18) and the hiPSC-CM aggregates (n = 10). Independent two sample t-tests and Wilcoxon rank-sum test are performed between α values of ECGs and hiPSC-CM aggregates to obtain p-values. High p-values indicate that the values are drawn from a same distribution, hence, similar.
From: Scaling and correlation properties of RR and QT intervals at the cellular level
ECG (n = 18) | hiPSC-CMs (n = 10) | p-value | ||
|---|---|---|---|---|
min-max, median, (Q1–Q3) | min-max, median, (Q1–Q3) | |||
RR α1 | 0.64–1.33 | IBI α1 | 0.83–1.14 | 0.730 |
0.94 | 1.03 | |||
(0.85–1.17) | (0.98–1.11) | |||
RR α2 | 0.73–1.16 | IBI α2 | 0.69–1.28 | 0.516 |
0.94 | 0.93 | |||
(0.90–0.99) | (0.72–0.99) | |||
QT α1 | 0.52–1.04 | FPD α1 | 0.52–0.96 | 0.362 |
0.63 | 0.60 | |||
(0.57–0.70) | (0.54–0.66) | |||
QT α2 | 0.74–1.31 | FPD α2 | 0.59–1.17 | 0.090 |
1.05 | 0.91 | |||
(0.89–1.15) | (0.74–1.03) | |||
