Figure 2.

Odds ratios (OR; 95% confidence interval [CI]) of complex ventricular ectopy. Model 1: SDB only. Model 2: SDB and demographics (age, sex, body mass index, and race). Model 3: SDB, demographics, and cardiovascular disease (CVD) risk factors (hypertension, diabetes mellitus, cholesterol, triglycerides, high-density lipoprotein, smoking history). Model 4: SDB, demographics, CVD risk factors, and CVD manifestations (angina, coronary heart disease, congestive heart failure, stroke, pacemaker placement, other cardiac surgery). Model 5: Optimal* reduced model (SDB status, age, and coronary heart disease). Model 6: Optimal reduced model using all available observations (n = 566). Modeling performed with observations for which there was complete covariate data (n = 526). * Optimal model determination was based on statistical and clinical significance of covariates and unsure and missing data were considered as absence of the variable in question.