Localization of premature ventricular contraction foci in normal individuals based on multichannel electrocardiogram signals processing

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Table 1 The statistical analysis (p-values), one-way ANOVA, of the 12 leads ECG features between the five groups

Features leads	Lead I	Lead II	Lead III	Lead aVR	Lead aVL	Lead aVF	Lead V1	Lead V2	Lead V3	Lead V4	Lead V5	Lead V6
QRS polarity	0.019	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.001
Average of Haar wavelet coefficients at level 1	0.231	0.508	0.917	0.544	0.969	0.496	0.249	0.415	0.284	0.627	0.513	0.924
Average of Haar wavelet coefficients at level 2	0.67	0.559	0.588	0.580	0.096	0.101	0.795	0.582	0.556	0.725	0.135	0.564
Maximum amplitude of spectrum signals	0.001	0.001	0.007	0.001	0.172	0.001	0.001	0.33	0.009	0.002	0.001	0.001
Variance of signals’ spectrum	0.002	0.001	0.010	0.001	0.254	0.001	0.001	0.037	0.036	0.001	0.001	0.001
Average of FFT of signal	0.002	0.001	0.001	0.001	0.099	0.001	0.001	0.064	0.430	0.001	0.001	0.001
Power spectrum of signals	0.002	0.001	0.010	0.001	0.193	0.001	0.002	0.031	0.037	0.002	0.002	0.001
Power spectrum band width of signals	0.001	0.001	0.013	0.001	0.218	0.001	0.002	0.068	0.073	0.002	0.003	0.005
Average of amplitudes of spectrum signals greater than the 70 percent	0.085	0.002	0.160	0.009	0.171	0.001	0.001	0.309	0.373	0.009	0.290	0.032
Average of spectrogram greater than the 70 percent	0.001	0.001	0.009	0.001	0.175	0.001	0.001	0.035	0.005	0.002	0.001	0.001

Using one-way ANOVA, the p-values of the 12 lead ECG features between five groups are shown in this table.