Skip to main content
. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Heart Rhythm. 2013 Oct 9;11(1):110–118. doi: 10.1016/j.hrthm.2013.10.022

Table 2.

QT interval variability indices values and related coherence with RR interval in the two different study conditions.

Variables Baseline
N = 144 segments		 7 weeks after MI
N = 144 segments		 P values
QTeVI −1.76(0.82) −1.32(0.68) <0.0001
QTe → RR coherence 0.372±0.158 0.367±0.164 0.780
QTpVI −1.90(1.01) −1.45(0.78) <0.0001
QTp → RR coherence 0.358±0.104 0.356±0.135 0.752
TeVI −0.72(0.67) −0.22(1.00) <0.0001
Te → RR coherence 0.287±0.102 0.280±0.103 0.549

Data are expressed as mean ± SD or median (interquartile range).