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. 2022 May 30;11(3):e0264. doi: 10.1097/XCE.0000000000000264

Table 2.

Short-period repolarization temporal dispersion variables in study patients

ECG characteristics All Deceased subjects Survivors P
N = 164 N = 26 N = 138
QT mean, ms 447 ± 76 458 ± 84 445 ± 74 0.434
QTSD, ms2 6.6 (5.4) 8.6 (3.9) 5.9 (5.2) 0.006
QTVN 0.24 (0.32) 0.33 (0.26) 0.26 (0.33) 0.015
Te mean, ms 107 ± 26 119 ± 33 104 ± 24 0.009
TeSD, ms2 7.2 (4.2) 8.7 (2.9) 6.8 (4.3) 0.009
TeVN 4.2 (5.6) 6.4 (7.3) 4.1 (7.3) 0.210

Data are expressed as mean ± SD, or median (interquartile range), or number of patients (%).

QT, QT interval; QTVN, variance normalized for mean of QT; Te, Tend.

Bold indicates statistical significance P < 0.05