Table 2 Differences in baseline ECG parameters between non-obese and obese participants with and without metabolic syndrome
| Â | Non-obese (84%) | Obese (16%) | |||||
|---|---|---|---|---|---|---|---|
ECG parameter | No MetS (83%) | MetS (17%) | Diff (95% CI) | No MetS (n = 36%) | MetS (64%) | Diff (95% CI) | p value int |
Heart rate (bpm) | 62.4 (0.2) | 67.7 (0.5) | 5.0 (3.9, 6.2) | 65.8 (0.3) | 68.8 (0.3) | 3.1 (2.2, 4.0) | 0.006 |
P duration (ms) | 110.9 (0.4) | 114.3 (0.6) | 2.3 (0.9, 3.6) | 115.2 (0.5) | 115.8 (0.4) | −0.6 (−1.8, 0.6) | 0.002 |
QRS duration (ms) | 92.3 (0.3) | 94.5 (0.5) | 0.8 (−0.4, 2.0) | 92.9 (0.4) | 95.0 (0.3) | 0.7 (−0.3, 1.7) | 0.985 |
PR interval (ms) | 162.1 (0.6) | 166.3 (1.0) | 2.4 (−0.1, 4.8) | 163.9 (0.8) | 164.8 (0.6) | −1.1 (−3.0, 0.9) | 0.029 |
QTc interval (ms) | 413.7 (0.6) | 414.7 (1.0) | 1.2 (−1.0, 3.4) | 416.1 (0.9) | 418.2 (0.6) | 2.2 (0.2, 4.2) | 0.373 |
P axis (°) | 49.0 (0.7) | 44.2 (1.0) | −4.3 (−6.8, −1.9) | 40.4 (0.8) | 40.6 (0.6) | −0.2 (−2.3, 1.9) | 0.001 |
T axis (°) | 39.4 (0.6) | 36.2 (1.1) | −2.8 (−5.5, −0.1) | 32.3 (0.8) | 34.4 (0.7) | 2.0 (−0.2, 4.2) | 0.001 |
QRS axis (°) | 39.8 (0.8) | 23.0 (1.4) | −13.3 (−16.6, −10.1) | 23.2 (1.0) | 18.4 (0.8) | −2.9 (−5.3, −0.5) | <0.001 |
Small Q-wave (%) | 5.2 | 9.1 | 2.8 (0.2, 5.4) | 8.1 | 9.3 | 0.7 (−1.7, 3.0) | 0.121 |