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Table 3 Incidence of atrial fibrillation during the 2-day observation period after tracheal extubation

From: Dexmedetomidine sedation during the nighttime reduced the incidence of postoperative atrial fibrillation in cardiovascular surgery patients after tracheal extubation

   Dex group Non-Dex group p value
Incidence of atrial fibrillation Total [n, (%)] 1/16 (6.3) 10/29 (34.5) 0.035
  Day 1 1/16 (6.3) 6/29 (20.7) 0.20
  Day 2 0/16 (0) 7/27 (25.9) 0.05
  1. Day 1: 24 h from 8 p.m. on the extubation day to 8 p.m. on the next day. Day 2: 24 h from 8 p.m. on the next day to 8 p.m. 2 days later following the extubation day