Fig. 2From: 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 a Distribution of Postoperative Day of Initial Positive Pressure Airway Treatment Among 76 Patients. b Distribution of Postoperative Day of Incident Atrial Fibrillation.1 p =0.20 for test of no difference in days of incident postoperative atrial fibrillationBack to article page