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Table 4 Primary and secondary outcomes stratified by risks

From: Computerized physician order entry of a sedation protocol is not associated with improved sedation practice or outcomes in critically ill patients

Variable

No protocol

CPOE protocol

Revised CPOE protocol

P-Value

P-Value

P-Value

(n = 91)

(n = 97)

(n = 91)

1 vs. 2

2 vs. 3

1 vs. 3

Risk 1 patients: age ˂60 years, normal kidney function (MDRD ˃90), normal liver function (MELD ˂8)

Primary outcomes

 Mechanical ventilation duration, mean ± SD, days

5.9 ± 6.4

12.2 ± 12.2

10.5 ± 9.4

0.21

0.55

0.40

 ICU LOS, mean ± SD, days

10.3 ± 7.4

13.3 ± 15.2

12.2 ± 11.5

0.39

0.75

0.44

 Hospital LOS, mean ± SD, days

78.4 ± 95.4

52.3 ± 53.5

50.8 ± 56.6

0.25

0.92

0.22

 ICU mortality, n (%)

3 (13)

3 (13)

4 (11)

1

1

1

 Hospital mortality, n (%)

5 (21)

5 (21)

4 (11)

1

0.46

0.46

Secondary outcomes

Average daily doses of analgesics and sedatives

 Fentanyl, mean ± SD, mcg/day

3694 ± 2315

3711 ± 2879

2613 ± 2257

0.98

0.11

0.08

 Morphine, mg/day

2.2 ± 9.3

0.93 ± 3.8

1.09 ± 3.4

0.54

0.87

0.58

 Dexmedetomidine, mean ± SD mcg/day

52 ± 112

125 ± 269

42 ± 93

0.23

0.16

0.72

 Midazolam, mean ± SD, mg/day

158 ± 148

111 ± 132

98 ± 113

0.26

0.67

0.08

 Propofol, mean ± SD, mg/day

564 ± 947

812 ± 1517

643 ± 1063

0.50

0.62

0.77

 Lorazepam, mg/day

0.17 ± 0.52

0.10 ± 0.31

0 ± 0

0.58

-

-

 Haloperidol, mg/day

0.17 ± 0.49

0.90 ± 2.8

0.37 ± 1.19

0.22

0.39

0.37

 Paralytics, mg/day

50.3 ± 85.4

47.3 ± 104.2

30.5 ± 59.7

0.91

0.48

0.30

Average NRS, SAS and GCS scores

 NRS score, mean ± SD

0.28 ± 0.54

0.22 ± 0.4

1.01 ± 0.86

0.63

<0.0001

0.0002

 SAS Score, mean ± SD

2.2 ± 1.1

2.5 ± 1.1

2.5 ± 1.3

0.47

0.96

0.46

 GCS score, mean ± SD

6.4 ± 3.4

6.9 ± 3.4

7 ± 3.3

0.58

0.95

0.50

Sedation-related complications during ICU stay

 Agitated (SAS = 5), n (%)

7 (29.2)

9 (37.5)

0 (0)

0.54

<0.0001

0.001

 Very agitated (SAS = 6), n (%)

3 (12.5)

2 (8.3)

1 (2.9)

1.00

0.56

0.29

 Dangerous agitation (SAS = 7), n (%)

2 (8.3)

1 (4.2)

0 (0)

100

0.41

0.16

 NGT self-removal, n (%)

1 (4.2)

0 (0)

0 (0)

1.00

-

0.41

 ETT self-removal, n (%)

0 (0)

0 (0)

0 (0)

-

-

-

 Brain CT scans for mental status assessment, n (%)

0 (0)

0 (0)

0 (0)

-

-

-

Risk 2 patients: age = 60–70 years, moderate kidney function impairment (MDRD = 30–90), moderate liver function impairment (MELD = 8–14)

Primary outcomes

 Mechanical ventilation duration, mean ± SD, days

9.6 ± 8.2

12.7 ± 13.8

8.4 ± 6.0

0.40

0.22

0.64

 ICU LOS, mean ± SD, days

11.3 ± 8.6

13 ± 12.1

11.4 ± 12.3

0.64

0.72

0.97

 Hospital LOS, mean ± SD, days

70.8 ± 95.3

45.3 ± 27.6

53.3 ± 42.2

0.29

0.51

0.49

 ICU mortality, n (%)

2 (11)

2 (11)

2 (13)

1

1

1

 Hospital mortality, n (%)

3 (17)

2 (11)

3 (19)

0.66

0.64

0.87

Secondary outcomes

Average daily doses of analgesics and sedatives

 Fentanyl, mean ± SD mcg/day

2336 ± 1979

4153 ± 3967

2759 ± 2455

0.09

0.23

0.58

 Morphine, mg/day

0.19 ± 0.59

0.02 ± 0.07

0.15 ± 0.42

0.23

0.22

0.83

 Dexmedetomidine, mean ± SD mcg/day

47 ± 67

54 ± 119

60 ± 214

0.82

0.92

0.81

 Midazolam, mean ± SD mg/day

59 ± 75

91 ± 88

98 ± 122

0.24

0.85

0.26

 Propofol, mean ± SD mg/day

201 ± 326

118 ± 285

759 ± 1425

0.42

0.1

0.14

 Lorazepam, mg/day

0.75 ± 0.23

0.02 ± 0.07

0 ± 0

0.36

-

-

 Haloperidol, mg/day

0.92 ± 1.58

0.26 ± 0.61

0.14 ± 0.56

0.11

0.55

0.06

 Paralytics, mg/day

6.0 ± 14.4

5.4 ± 14.6

25.9 ± 57.7

0.90

0.19

0.20

Average NRS, SAS and GCS scores

 NRS score, mean ± SD

0.44 ± 0.80

0.23 ± 0.53

0.93 ± 0.69

0.35

0.002

0.06

 SAS score, mean ± SD

3.1 ± 0.9

2.8 ± 1.0

2.3 ± 1.2

0.42

0.24

0.055

 GCS score, mean ± SD

7.7 ± 2.2

8.2 ± 4.0

6.4 ± 3

0.64

0.13

0.14

Sedation-related complications during ICU stay

 Agitated (SAS = 5), n (%)

10 (55.6)

9 (47.4)

0 (0)

0.62

0.001

0.0004

 Very agitated (SAS = 6), n (%)

3 (16.7)

1 (5.3)

0 (0)

0.34

1.00

0.23

 Dangerous agitation (SAS = 7), n (%)

1 (5.6)

0 (0)

0 (0)

0.49

-

1.00

 NGT self-removal, n (%)

1 (5.6)

2 (10.5)

0 (0)

1.00

0.49

1.00

 ETT self-removal, n (%)

0 (0)

0 (0)

0 (0)

-

-

-

 Brain CT scans for mental status assessment, n (%)

0 (0)

0 (0)

0 (0)

-

-

-

Risk 3 patients: age ˃70 years, severe kidney function impairment (MDRD ˂30), severe liver function impairment (MELD ˃14)

Primary outcomes

 Mechanical ventilation duration, mean ± SD, days

11.3 ± 10.0

11.8 ± 9.0

10.9 ± 7.1

0.81

0.61

0.82

 ICU LOS, mean ± SD, days

13.2 ± 11.6

12 ± 9.9

13.6 ± 9.5

0.56

0.42

0.86

 Hospital LOS, mean ± SD, days

52.5 ± 75.4

33 ± 29.8

39.1 ± 22.7

0.10

0.28

0.25

 ICU mortality, n (%)

19 (39)

33 (61)

10 (25)

0.02

0.0005

0.17

 Hospital mortality, n (%)

28 (57)

36 (67)

22 (55)

0.32

0.25

0.84

Secondary outcomes

Average daily doses of analgesics and sedatives

 Fentanyl, mean ± SD mcg/day

2232 ± 2108

3571 ± 3245

1633 ± 1719

0.01

0.0003

0.15

 Morphine, mg/day

0.14 ± 0.82

0.23 ± 1.3

0 ± 0

0.68

0.19

0.24

 Dexmedetomidine, mean ± SD mcg/day

46 ± 130

12 ± 51

32 ± 102

0.10

0.28

0.57

 Midazolam, mean ± SD mg/day

55 ± 71

58 ± 84

30 ± 42

0.85

0.03

0.04

 Propofol, mean ± SD mg/day

148 ± 508

90 ± 240

293 ± 523

0.48

0.03

0.19

 Lorazepam, mg/day

0.05 ± 0.18

0.05 ± 0.28

0 ± 0

0.99

-

-

 Haloperidol, mg/day

0.08 ± 0.43

0.27 ± 1.41

0.13 ± 0.51

0.34

0.51

0.58

 Paralytics, mg/day

25.8 ± 54.8

12.8 ± 35.8

12.0 ± 32.6

0.17

0.91

0.15

Average NRS, SAS and GCS scores

 NRS score, mean ± SD

0.15 ± 0.27

0.11 ± 0.25

1.07 ± 0.61

0.46

<0.0001

<0.0001

 SAS score, mean ± SD

2.3 ± 1.1

2.1 ± 1.0

2.6 ± 1.0

0.31

0.02

0.18

 GCS score, mean ± SD

6.5 ± 3.2

5.9 ± 2.9

7.4 ± 2.6

0.32

0.01

0.17

Sedation-related complications during ICU stay

 Agitated (SAS = 5), n (%)

20 (40.8)

11 (20.4)

3 (7.5)

0.02

0.08

0.0004

 Very agitated (SAS = 6), n (%)

4 (8.2)

3 (5.6)

2 (5)

0.71

1.00

0.69

 Dangerous agitation (SAS = 7), n (%)

1 (2)

0 (0)

2 (5)

0.48

0.18

0.59

 NGT self-removal, n (%)

0 (0)

0 (0)

0 (0)

-

-

-

 ETT self-removal, n (%)

2 (4.1)

0 (0)

0 (0)

0.22

-

0.50

 Brain CT scans for mental status assessment, n (%)

1 (2)

0 (0)

0 (0)

0.48

-

1.00

  1. 1: No protocol; 2: CPOE Protocol; 3: Revised CPOE Protocol; CT computed tomography, ETT endotracheal tube, GCS Glasgow Coma Scale, ICU intensive care unit, LOS length of stay, MDRD Modification of Diet in Renal Disease (surrogate for kidney function), MELD Model for End-Stage Liver Disease (surrogate for liver function), NGT nasogastric tube, NRS Numeric Rating Scale, SAS Sedation-Agitation Scale