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Table 4 Univariate analysis of electrocardiographic abnormalities associated with survival

From: Electrocardiographic abnormalities in centenarians: impact on 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    
  1. *Survival days.
  2. Abbreviations: CI 95%: 95% Confidence interval; RR: Relative risk.