| P axis | QRS axis | T axis | QTA |
Mean ± SD (degrees) | 48.54 ± 20.08 | 37.69 ± 21.10 | 30.41 ± 19.11 | 7.28 ± 23.26 |
Pearson’s regression coefficient (r) | 0.032 | −0.295 | −0.002 | −0.266 |
P value | 0.773 | 0.006 | 0.984 | 0.014 |