Table 2.
Echocardiographic findings in elite athletes with and without low QRS voltages
| LQRSV (N = 17) | No LQRSV (N = 758) | P | Abs. diff. (95% CI) | |
|---|---|---|---|---|
| LA antero-posterior diameter | 34 ± 5 | 34 ± 4 | 0.58 | 0 (−3, 2) |
| IV septum thickness (mm) | 9 ± 1 | 9 ± 1 | 0.25 | 0 (−1, 1) |
| Posterior wall thickness (mm) | 9 ± 1 | 9 ± 1 | 0.40 | 0 (−1, 1) |
| LV End-diastolic diameter/m2 | 28 ± 2 | 28 ± 2 | 0.74 | 0 (−1, 1) |
| LV End-systolic diameter/m2 | 17 ± 2 | 17 ± 2 | 0.77 | 0 (−1, 1) |
| LV mass/m2 | 88 ± 17 | 92 ± 20 | 0.53 | 4 (−5, 14) |
| RVOT proximal diameter | 27 ± 3 | 27 ± 4 | 0.93 | 0 (−2, 2) |
| RVOT distal diameter | 27 ± 5 | 29 ± 4 | 0.09 | 1 (−1, 4) |
| LV ejection fraction | 65 ± 6 | 66 ± 6 | 0.07 | 1 (−2, 4) |
| E/A ratio | 2 ± 0.4 | 2 ± 0.5 | 0.53 | 0.1 (−0.1, 0.4) |
| E/Ei ratio | 7 ± 1 | 7 ± 1 | 0.48 | −0.1 (−0.7, 0.6) |
LA, left atrium; LV, left ventricle; LQRSV, low QRS voltages; IV, interventricular; RVOT, right ventricular outflow tract.