Table 3.
Relation of standardized ECG parameters to metabolic syndrome scores (range 0–5)
| ECG parameter | All | Non-obese (84%) | Obese (16%) | p value int |
|---|---|---|---|---|
| Heart rate | 0.17 (0.15, 0.19) | 0.16 (0.13, 0.19) | 0.12 (0.09, 0.16) | 0.137 |
| P duration | 0.07 (0.05, 0.10) | 0.05 (0.02, 0.09) | 0.00 (−0.04, 0.03) | 0.027 |
| QRS duration | 0.04 (0.01, 0.06) | 0.02 (−0.01, 0.06) | 0.04 (0.00, 0.07) | 0.466 |
| PR interval | 0.01 (−0.02, 0.04) | 0.00 (−0.04, 0.04) | 0.01 (−0.03, 0.04) | 0.866 |
| QTc interval | 0.05 (0.02, 0.08) | 0.04 (0.00, 0.07) | 0.05 (0.01, 0.09) | 0.335 |
| P axis | −0.10 (−0.12, −0.07) | −0.08 (−0.12, −0.05) | −0.01 (−0.05, 0.02) | 0.001 |
| T axis | −0.07 (−0.10, −0.05) | −0.07 (−0.11, −0.04) | 0.04 (0.00, 0.08) | <0.001 |
| QRS axis | −0.19 (−0.22, −0.16) | −0.17 (−0.21, −0.13) | −0.05 (−0.08, −0.02) | <0.001 |
Data are presented as β (95% CI); change in Z-score of ECG parameter per metabolic syndrome component. Results were based on weighted analysis. Multivariate model adjusted for age, sex, ethnicity, smoking, alcohol intake, education level, physical activity and statin use