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Table 2 Patient characteristics at randomization and during the first 48 h after intubation

From: Is COPD associated with increased risk for microaspiration in intubated critically ill patients?

  COPD p value
Yes (n = 70) No (n = 445)
Size of tracheal tube    0.012
 6.5 and 7 mm 4 (6) 63 (14)  
 7.5 mm 29 (41) 233 (52)  
 8 and 8.5 mm 35 (50) 125 (28)  
Shape of tracheal cuff    0.16
 Standard 51 (73) 296 (67)  
 Tapered 19 (27) 149 (33)  
Continuous control of cuff pressure 14 (20) 40 (9) 0.010
Positive end expiratory pressure, H2O 7 (6, 9) 8 (6, 10) 0.050
Enteral nutrition 63 (90) 360 (81) 0.093
Vomiting 9 (13) 59 (13) 0.99
Prokinetics 8 (11) 50 (11) 0.99
Proton pump inhibitor 40 (57) 255 (51) 0.99
Sedation 56 (80) 356 (80) 0.99
Neuromuscular-blocking agents 14 (20) 104 (23) 0.64
Glasgow coma score 14 (7, 15) 14 (7, 15) 0.95
Ramsay score 4 (3, 4) 4 (3, 4) 0.833
  1. Data are median (IQ), or number (%)