Skip to main content

Table 5 Number and percentages of monitoring and use of vasopressors or inotropes before propensity score matching

From: Effect of the preoperative physical status on postoperative nausea and vomiting risk: a matched cohort study

   ASA-PS 1 ASA-PS 2 ASA-PS 3 ASD (ASA-PS 1 vs. 2/1 vs. 3/2 vs. 3)
Original data analysis IAM 5292 (9.5) 21,406 (25.8) 17,693 (71.4) 0.73/1.90/1.55
CVP 624 (1.1) 4748 (5.7) 4381 (17.7) 0.98/0.36/0.77
IUC 12,989 (23.2) 30,053 (36.3) 13,732 (55.4) 0.39/0.86/0.46
VI 16,563 (29.6) 36,423 ( 44.0) 17,080 (68.9) 0.39/1.00/0.60
Sensitivity analysis IAM 3163 (10.0) 23,488 (22.0) 17,740 (70.9) 0.52/1.86/1.23
CVP 381 (1.2) 4981 (4.7) 4390 (17.5) 0.74/1.67/0.88
IUC 8708 (27.6) 34,246 (32.0) 13,820 (55.2) 0.12/0.73/0.55
VI 9823 (31.1) 43,076 (40.3) 17,168 (68.9) 0.23/0.98/0.66
  1. ASA American Society of Anesthesiologists, PS physical status, IAM invasive arterial monitoring, CVP central venous pressure monitoring, IUC indwelling urinary catheterization, VI use of vasopressors or inotropes, ASD absolute standardized difference