Table 4.
Univariate analysis of electrocardiographic abnormalities associated with survival
| n | Median* | RR | 95% CI RR | P | ||
|---|---|---|---|---|---|---|
|
Atrial fibrillation |
yes |
21 |
191 |
1.9 |
1.2 - 3.2 |
.012 |
| no |
59 |
603 |
||||
|
QRS axis deviation |
yes |
27 |
368 |
1.0 |
0.6 - 1.6 |
.958 |
| no |
53 |
627 |
|
|
|
|
|
High amplitude R waves |
yes |
7 |
266 |
1.8 |
0.8 - 4 |
.136 |
| no |
73 |
564 |
|
|
|
|
|
AV conduction defect |
yes |
9 |
395 |
1.5 |
0.8 – 3.1 |
.231 |
| no |
71 |
590 |
|
|
|
|
|
Ventricular conduction defect |
yes |
26 |
459 |
0.8 |
0.5 – 1.3 |
.417 |
| no |
54 |
454 |
|
|
|
|
|
Repolarisation abnormalities |
yes |
25 |
266 |
1.4 |
0.9 – 2.2 |
.192 |
| no |
55 |
590 |
|
|
|
|
| ST depression |
yes |
17 |
191 |
2.2 |
1.3 – 3.9 |
.005 |
| no |
63 |
603 |
|
|
|
|
|
Q and QS patterns |
yes |
13 |
340 |
1.4 |
0.8 – 2.6 |
.275 |
| |
no |
67 |
564 |
|
|
|
|
Miscellaneous items |
yes |
27 |
344 |
1.4 |
0.8 – 2.2 |
.199 |
| no | 53 | 627 |
*Survival days.
Abbreviations: CI 95%: 95% Confidence interval; RR: Relative risk.