Table 3

Risk of Incident Atrial Fibrillation, Multivariate Models

HR95% CIp Value
<65 yrs old
 Age (per 10 yrs)2.041.48–2.80<0.001
 Male gender2.661.33–5.300.006
 Coronary artery disease2.661.46–4.830.001
 Body mass index (per 1 kg/m2)1.071.05–1.10<0.001
 Decrease in nocturnal oxygen saturation (per −1%)3.291.35–8.040.009
≥65 yrs old
 Heart failure7.684.32–13.66<0.001

CI = confidence interval; HR = hazard ratio.

  • For a 0.5-U change in the logarithm of the difference between awake oxygen saturation and mean nocturnal oxygen saturation.