Table 3.
Comparison between the three studied groups regarding electrocardiographic parameters.
| Variables | Group I | Group II | HC | p | p1 (I vs. II) |
p2 (I vs. HC) |
p3 (II vs. III) |
|---|---|---|---|---|---|---|---|
| QT max | 391.3 ± 20 | 288.7 ± 16.8 | 285.2 ± 17.5 | 0.001* | <0.001* | <0.001* | 0.261 |
| QT min | 366.8 ± 22.1 | 253.7 ± 25.7 | 248.5 ± 22.4 | 0.001* | <0.001* | <0.001* | 0.250 |
| QTd | 45.4 ± 16.4 | 32.1 ± 8.9 | 32 ± 8 | 0.001* | 0.001* | 0.001* | 0.487 |
| P max | 71.7 ± 7.1 | 56.2 ± 3 | 58.2 ± 3.9 | 0.001* | <0.001* | <0.001* | 0.306 |
| P min | 46.5 ± 6.4 | 39.3 ± 6.5 | 39.7 ± 6.4 | 0.001* | 0.001* | 0.001* | 0.423 |
| PWD | 28.6 ± 2.7 | 12 ± 3 | 13.7 ± 4.3 | 0.001* | <0.001* | <0.001* | 0.084 |
| Average HR | 154 ± 11.1 | 146 ± 10.5 | 146.2 ± 8.8 | 0.001* | 0.01* | <0.001* | 0.474 |
Data are presented as mean ± SD.
HC = healthy control; HR = heart rate; max = maximum; min = minimum; PWD = P-wave dispersion; QTd = QT dispersion.
*means significant.