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Table 2 Comparison outcomes during the intervention period and at 7 days post-randomisation for the entire study cohort

From: A randomized controlled proof-of-concept trial of early sedation management using Responsiveness Index monitoring in mechanically ventilated critically ill patients

Outcome

Intervention (n = 36)

Control (n = 38)

P value

Outcomes during 48-hour intervention period

Proportion of hours during the intervention period with RI value <20, median

16

33

0.08

(1st, 3rd quartile; min– max)

(8, 30; 1–87)

(10, 54; 0–86)

Time, hours from start of monitoring to first RI value >20, median

0.1

0.3

0.43

(1st, 3rd quartile; min– max)

(0.0, 2.2, 0.0–7.8)

(0.0, 3.1, 0.0–48)

Proportion of RASS scores of −4 or −5 during the intervention period, median

12

17

0.70

(1st, 3rd quartile; min– max)

(0, 35; 0–94)

(3, 36; 0–100)

Time, hours from start of monitoring to first RASS score >−4, median

2

3

0.68

(1st, 3rd quartile; min– max)

(0, 8, 0–43)

(0, 8, 0–48)

Total propofol dose, mg, during the intervention period, median

1,365

1,730

0.64

(1st, 3rd quartile; min– max)

(380, 2,790; 50–8,710) 1730

(620, 3,260; 0–8,630)

Total alfentanil dose, mg, during the intervention period, median

23.4

25.2

0.68

(1st, 3rd quartile; min– max)

(9.0, 36.4; 0.0–51.5)

(8.6, 36.0; 0.3–87.0)

Number (%) of patients undergoing sedation hold during the intervention period

30/36 (83)

33/38 (87)

0.751

Number (%) of patients extubated during the intervention period

17/36 (47.2 %)

17/38 (44.7 %)

1.00

Proportion of hours in intervention period during which patient extubated, median

4

0

0.49

(1st, 3rd quartile; min– max)

(0–62; 0–92)

(0, 44; 0–97)

Number (%) of patients with any predefined adverse events during intervention period

7/36 (19.4 %)

5/38 (13.1 %)

0.54

Unplanned extubation, number

0

1

 

Unplanned removal of vascular catheter, number

0

0

Unplanned removal of nasogastric or other enteral tube, number

1

0

Unplanned removal of other drain or device, number

  

Episode of myocardial ischaemia, number

0

0

Myocardial infarction, number

0

0

Episode of agitation requiring bolus treatment with haloperidol or sedative drug (rescue medication), number

0

0

6

4

Outcomes at 7 days post-randomisation

Time from start of monitoring to first extubation, hours, median

42.4

54.8

0.52

(1st, 3rd quartile; min– max)

(14.7, 168.0; 2.0–168.0)

(22.8, 168.0; 1.78–168.0)

Deaths, number (%)

1/36 (2.8 %)

3/38 (7.9 %)

0.62

Discharged from ICU, number (%)

20/36 (55.6 %)

18/38 (47.4 %)

0.50

Still in ICU, number (%)

15/36 (41.7 %)

15/38 (41.7)

1.00

Transferred to another ICU, number (%)

0/36 (0 %)

2/38 (2 %)

0.49

  1. The intervention period was defined as being from the start of monitoring to 48 hours post ICU admission. RI Responsiveness Index, RASS Richmond agitation-sedation scale