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Table 2 Risk of Postoperative Atrial Fibrillation (POAF) in Relation to Postoperative Positive Airway Pressure (PAP) Treatment

From: Effect of postoperative positive airway pressure on risk of postoperative atrial fibrillation after cardiac surgery in patients with obstructive sleep apnea: a retrospective cohort study

  No Postoperative PAP (N = 76) Postoperative PAP (N = 76) Unadjusted Hazard Ratioa (95% CI) Adjusted Hazard Ratiob (95% CI)
POAF 49 (64.5%) 37 (48.7%) 0.81 (0.53 – 1.24) 0.93 (0.58 – 1.48)
  1. aWe treated postoperative PAP use as a time-dependent variable in the Cox regression model. The PAP variable for patients who received postoperative PAP was coded as zero until the start of PAP and as one thereafter
  2. bAdjusted for age, gender, previous atrial fibrillation, history of cerebrovascular event, history of myocardial infarction, chronic obstructive pulmonary disease, surgery type, cardiopulmonary bypass time, and aortic cross-clamp time