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Table 2 Mortality associations

From: Evaluation of operating room reverse Trendelenburg positioning and its effect on postoperative hypoxemia, aspiration, and length of stay: a retrospective study of consecutive patients

  Lived Died p value
Patients 1491 (99.4%) 9 (0.6%)  
Adverse outcomes
 Postoperative hypoxemia 302 (20.3%) 7 (77.8%) 0.0004
 Perioperative aspiration 48 (3.2%) 4 (44.4%) < 0.0001
 Postoperative length of stay (days) 2.5 ± 3.4 5.1 ± 5.7 0.2099
Preoperative risk
 Age 56 ± 17 75 ± 14 0.0016
 ASA classification 2.8 ± 0.6 3.2 ± 0.7 0.0464
 Emergency procedures 120 (8.1%) 3 (33.3%) 0.0058
 Preexisting lung disease 221 (14.8%) 1 (11.1%) 0.7546
 Weight (kg) 86 ± 24 80 ± 22 0.4037
Intraoperative risk
 Operating room minutes 128 ± 74 149 ± 69 0.3972
 Glycopyrrolate on induction 366 (24.6%) 1 (11.1%) 0.3499
 Fluid input (L) 1.6 ± 1.0 2.2 ± 2.0 0.3964
  1. ASA American Society of Anesthesiologists