TABLE 1.
Patient's characteristics
| COVID−19 pneumonia n = 63 | Control group n = 46 | p value | |
|---|---|---|---|
| Age(years), mean ± SD | 49 ± 13 | 51 ± 11 | .56 |
| Male, % | 28 (44%) | 20 (43%) | .74 |
| BMI, mean ± SD | 30 ± 5 | 29.7 ± 4 | .75 |
| Hypertension,% | 20 (31%) | 20 | .20 |
| Diabetes mellitus,% | 13 (21%) | 6 (13%) | .32 |
| Smoking,% | 7 (11%) | 6 (13%) | .75 |
| ECG markers | |||
| QRS duration (ms),mean ± SD | 87 ± 12 | 78 ± 13 | <.00 |
| QTc interval(ms),mean ± SD | 429 ± 36 | 400 ± 32 | <.00 |
| Tp‐e (ms),mean ± SD | 69 ± 12 | 73 ± 11 | .62 |
| iCEB(QTc/QRS), mean ± SD | 4.9 ± 0.8 | 5.2 ± 1 | .08 |
| TDR(Tp‐e/QTc), mean ± SD | 0.15 ± 0.0 | 0.18 ± 0.0 | <.00 |
Abbreviations: BMI, body mass index; iCEB, index of cardiac electrophysiological balance; ms, milliseconds; SD, standard deviation; TDR, transmural dispersion of repolarization; Tp‐e, T from peak to end interval.