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Table 3 Mean arterial pressure, vasopressor use, and clinical outcomes

From: The evolution of mean arterial pressure in critically ill patients on vasopressors before and during a trial comparing a specific mean arterial pressure target to usual care

Variable

Usual care before vs. during the trial

Usual care pre-trial vs. non-enrolled vs. usual care controls

Pre-trial period

(N = 200)

During-trial period

(N = 229)

p-value

Pre-trial group

(N = 200)

Non-enrolled group (N = 155)

Usual Care control group

(N = 74)

p-value

Mean Arterial Pressure (MAP)

MAP while receiving vasopressors (mean [SD])

72.5 (5.1)

72.4 (5)

0.76

72.5 (5.1)

72.3 (5.1)

72.5 (4.9)

0.92

MAP prescribed (mean [SD])

64.7 (3.1)

65.3 (3.7)

0.08

64.7 (3.1)

65.1 (3.3)

65.5 (4.5)

0.15

Vasopressor use

Vasopressor duration, hours (mean [SD])

48.5 (44.3)

43.6 (40.5)

0.24

48.5 (44.3)

45.3 (41.1)

40.3 (39.2)

0.36

Vasopressor dose-rate, μg/kg/min (mean [SD])

0.21 (0.3)

0.23 (0.37)

0.53

0.21 (0.3)

0.25 (0.41)

0.2 (0.27)

0.47

Vasopressor total dose, mg (mean [SD])

60.1 (122)

56.6 (104.9)

0.75

60.1 (121.9)

62.9 (118.6)

43.4 (66.5)

0.45

Vasopressor(s) restarted, n (%)

22 (11)

36 (15.7)

0.15

22 (11)

26 (16.8)

10 (13.5)

0.29

Clinical Outcomes

ICU Stay, days (median [IQR])

4.0 (2.2–8.4)

5.0 (2.6–9.0)

0.43

4.0 (2.2–8.4)

5.1 (2.3–8.6)

5.3 (3.0–9.8)

0.24

Hospital Stay, days (median [IQR])

13.7 (7.3–25.4)

12.9 (7.0–25.1)

0.46

13.7 (7.3–25.4)

12.6 (6.6–24.1)

14.3 (8.5–28.1)

0.47

ICU readmission(s), n (%)

13 (6.5)

20 (8.7)

0.39

13 (6.5)

11 (7.1)

9 (12.2)

0.28

Patients with ≥1 complication, n (%)

88 (44.0)

98 (42.8)

0.80

88 (44.0)

73 (47.1)

25 (33.8)

0.16

Mortality (ICU), n (%)

52 (26.0)

66 (28.8)

0.51

52 (26.0)

46 (29.7)

20 (27.0)

0.74

Mortality (Hospital), n (%)

75 (37.5)

78 (34.1)

0.46

75 (37.5)

54 (34.8)

24 (32.4)

0.71

  1. Abbreviations: MAP mean arterial pressure, ICU intensive care unit, IQR interquartile range, SD standard deviation