Multivariate Logistic regression model for new arrhythmia and new tachyarrhythmias.
Multivariate logistic regression models were conducted to explore variables that were associated with new arrhythmias and new tachyarrhythmias. As presented in Figure 2, background CHF (OR 4.66, 95 CI 1.45-14.97, p=0.01) and disease severity (p=0.003) were associated with overall new arrhythmias. A stepwise increase in odds ratio (OR) for overall new onset arrhythmia was seen with increased disease severity. As compared with mild disease, patients with moderate, severe and critical disease had OR of 4.81, 8.86 and 15.79 to develop new arrhythmia, respectively.
Factors associated with new tachyarrhythmias are presented in Figure 3. Age, background CHF, presentation with syncope or palpitations and disease severity were significantly associated with new tachyarrhythmia in the multivariate analysis.