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Table 6 Number and percentages of monitoring and use of vasopressors or inotropes after propensity score matching

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

   Original data analysis Sensitivity analysis
Low ASA-PS High ASA-PS ASD Low ASA-PS High ASA-PS ASD
ASA-PS 1 vs. 2 IAM 4885 (11.3) 8391 (19.3) 0.4 3148 (10.1) 5226 (16.9) 0.36
CVP 600 (1.4) 1456 (3.4) 0.56 381 (1.2) 876 (2.8) 0.53
IUC 10,629 (24.5) 14,668 (33.8) 0.28 8506 (27.4) 10,561 (34.0) 0.20
VI 13,443 (31.0) 16,388 (37.8) 0.19 9679 (31.2) 11,487 (36.9) 0.16
ASA-PS 1 vs. 3 IAM 2205 (17.0) 8101 (61.0) 1.25 1421 (16.2) 5339 (60.9) 1.28
CVP 393 (3.0) 1529 (11.5) 0.88 250 (2.8) 949 (10.8) 0.87
IUC 9176 (33.0) 12,689 (53.9) 0.67 2183 (24.9) 4256 (48.5) 0.65
VI 4970 (37.4) 9837 (59.0) 0.55 3373 (38.4) 5217 (59.5) 0.53
ASA-PS 2 vs. 3 IAM 8612 (36.6) 16,497 (70.1) 0.87 8627 (36.1) 16,667 (69.7) 0.87
CVP 2324 (5.9) 3854 (16.4) 0.36 2301 (9.6) 3895 (16.3) 0.38
IUC 9176 (39.0) 12,689 (53.9) 0.38 9242 (38.7) 12,872 (53.9) 0.39
VI 12,951 (55.0) 15,934 (67.7) 0.34 12,937 (54.1) 16,128 (67.5) 0.35
  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