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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