Table 3 Distribution of main abnormalities in the ECG of 80 centenarians, according to the presence of functional dependence measured by BI and cognitive impairment measured by CME
From: Electrocardiographic abnormalities in centenarians: impact on survival
BI > 60 | BI ≤ 60 | P | CME ≥ 20 | CME < 20 | P | |||||
|---|---|---|---|---|---|---|---|---|---|---|
No. | % | No. | % | No. | % | No. | % | |||
Sinus rhythm | 34 | 79.1 | 25 | 67.6 | .244 | 17 | 73.9% | 42 | 73.7 | .983 |
Arrhythmias | 24 | 55.8 | 20 | 54.1 | .875 | 14 | 60.9% | 30 | 52.6% | .503 |
Atrial fibrillation or flutter | 9 | 20.9 | 12 | 32.4 | .244 | 6 | 26.1% | 15 | 26.3% | .983 |
QRS axis deviation | 12 | 27.9 | 15 | 40.5 | .233 | 6 | 26.1% | 21 | 36.8% | .357 |
High amplitude R waves | 6 | 14 | 1 | 2.7 | .116 | 2 | 8.7% | 5 | 8.8% | .999 |
AV conduction defect | 3 | 7 | 6 | 16.2 | .290 | 2 | 8.7% | 7 | 12.3% | .999 |
Ventricular conduction defect | 14 | 32.6 | 12 | 32.4 | .990 | 6 | 26.1% | 20 | 35.1% | .437 |
Repolarisation abnormalities | 11 | 25.6 | 14 | 37.8 | .238 | 5 | 21.7% | 20 | 35.1% | .244 |
ST depression | 6 | 14 | 11 | 29.7 | .085 | 2 | 8.7% | 15 | 26.3% | .130 |
T amplitude zero, negative or diphasic | 8 | 18.6 | 10 | 27 | .368 | 4 | 17.4% | 14 | 24.6% | .487 |
Q and QS patterns | 5 | 11.6 | 8 | 21.6 | .227 | 3 | 13.0% | 10 | 17.5% | .747 |
Miscellaneous items | 13 | 30.2 | 14 | 37.8 | .473 | 4 | 17.4% | 23 | 40.4% | .068 |