Table 2.
Correlations between correct ECG assumption and study population characteristics (BSA = body surface area, BMI = body mass index, HR = heart rate, lead I = Einthoven lead I, lead II = Einthoven lead II, lead III = Einthoven lead III, Wr = pseudo-unipolar recording corresponding to standard lead V1, Wm = pseudo-unipolar recording corresponding to standard lead V4, Wl = pseudo-unipolar recording corresponding to standard lead V6). P values were obtained by T-Test, ANOVA and χ2-test; probability limit 95%.
| ECG Correct | ECG Incorrect | p | |
|---|---|---|---|
| Size (cm) | 168 ± 26 | 176 ± 10 | 0.573 |
| Weight (kg) | 69 ± 10 | 75 ± 22 | 0.364 |
| BSA (m2) | 1.78 ± 0.28 | 1.90 ± 0.32 | 0.416 |
| BMI (kg/m2) | 23.2 ± 2.6 | 23.7 ± 4.2 | 0.725 |
| Age (years) | 37 ± 11 | 28 ± 7 | 0.112 |
| QRS axis (°) | 55 ± 29 | 43 ± 44 | 0.450 |
| Sex (m/f) | 13/26 | 5/6 | 0.459 |
| HR 12 lead ECG (bpm) | 71 ± 13 | 69 ± 11 | 0.511 |
| HR lead I (bpm) | 71 ± 10 | 73 ± 9 | 0.782 |
| HR lead II (bpm) | 71 ± 10 | 70 ± 12 | 0.806 |
| HR lead III (bpm) | 71 ± 9 | 71 ± 11 | 0.889 |
| HR Wr (bpm) | 71 ± 10 | 68 ± 10 | 0.550 |
| HR Wm (bpm) | 72 ± 10 | 70 ± 9 | 0.751 |
| HR Wl (bpm) | 72 ± 11 | 73 ± 12 | 0.882 |