Table 3.

Short-term QT-RR and intra-QT spectral coherence values in the two study groups.

Variables	VT group N: 27	No-VT N: 97	P values
QTe → RR, coherence	0.223 ± 0.056	0.218 ± 0.049	ns
QTp → RR, coherence	0.236 ± 0.076	0.230 ± 0.061	ns
T e → RR, coherence	0.229 ± 0.147	0.214 ± 0.037	ns
QTe → QTp, coherence	0.207 ± 0.034	0.233 ± 0.089	ns
QTe → T e, coherence	0.504 ± 0.170	0.520 ± 0.195	ns
QTp → T e, coherence	0.508 ± 0.150	0.607 ± 0.150	0.016

Values are expressed as mean ± SD (unpaired t-test).