Table 3 Comparison between QTP patients with different outcomes during hospitalization
ECG parameters | 30-day survival (n = 168) | 30-day mortality (n = 67) | P value |
|---|---|---|---|
Heart rate, bpm | 93.35 ± 19.62 | 109.39 ± 30.74 |  < 0.001 |
QRS duration, ms | 98.16 ± 23.22 | 99.99 ± 23.61 | 0.589 |
PR interval, ms | 152.34 (27.82) | 149.16 (28.48) | 0.434 |
QT interval, ms | 390.90 (41.39) | 378.96 (47.63) | 0.057 |
Corrected QT, ms | 476.70 (23.32) | 486.76 (28.15) | 0.005 |
Axis, degree | 34 [3.5, 63.5] | 58 [21, 76] | 0.002 |
RV5 + SV1, ms | 2.04 (1.03) | 2.01 (1.32) | 0.816 |
TWD/QT | 59.88 (10.74) | 57.02 (13.15) | 0.085 |
Tpeak-Tend/QT | 27.63 (7.12) | 25.85 (6.49) | 0.077 |
U wave | 8 (4.76) | 1 (1.49) | 0.238 |