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Table 4 Clinical, EEG and laboratory variables associated with in hospital mortality

From: The association between the presence and burden of periodic discharges and outcome in septic patients: an observational prospective study

 

In hospital mortality

Non-survivors (n = 28)

Survivors (n = 64)

Univariate

Multivariate analysis

p value

p value

OR

CI 95%

Age (> 65y)

18 (64%)

26 (41%)

0.037

  

Female

10 (36%)

20 (31%)

0.67

  

APACHE II

27 [21–32]

21 [20–26]

0.008

0.059

1.05

[0.99–1.11]

non-neuro APACHE II

19 [15–24]

17 [10–23]

0.233

  

APACHE II (> 23)

17 (61%)

24 (38%)

0.039

  

CAM-ICU+ 

10/19 (53%)

19/51 (37%)

0.25

  

CRS-R

3 [1–14]

22 [7–23]

0.001

  

GCS

10 [5–15]

14 [8–15]

0.004

  

Sedation

13 (46%)

17 (27%)

0.061

  

 Propofol dose (mg/kg/day)

24.2 [15–35.5]

18 [4–37]

0.36

  

 Propofol duration (day)

3 [2–6]

1 [1–3]

0.009

  

 Mdz dose (mg/kg/day)

0.1 [0.1–0.3]

0.6 [0.6–0.9]

0.03

  

 Mdz duration (day)

1.5 [1–2.75]

2 [2–3]

0.37

  

 Dxd dose (µg/kg/day)

3.4 [na]

7.9 [7.5–16.7]

0.5

  

 Dxd duration (day)

4 [na]

2 [1.5–2]

0.34

  

Vasoactive drugs

24 (86%)

52 (81%)

0.6

  

Mechanical ventilation

22 (79%)

42 (66%)

0.214

  

SAE

25 (89%)

15 (23%)

0.013

  

cEEG rhythmic and periodic patterns

 RDA

17 (61%)

31 (48%)

0.28

  

 PDs

12 (43%)

11 (17%)

0.009

0.038

2.94

[1.07–8.18]

 PDs burden

[0–60]%

[0–30]%

0.014

  

cEEG background

 Reactivity

19 (68%)

55 (86%)

0.044

  

 Sleep

13 (46%)

42 (66%)

0.08

  

 PDR

23 (82%)

59 (92%)

0.15

  

 High grade mSynek scale

17 (61%)

16 (25%)

0.001

  

 SB/suppressed

2 (7%)

1 (1%)

0.22

  

 Discontinuous/Low voltage

6 (21%)

5 (8%)

0.06

  
  1. Data are presented as median [interquartile range] or count (percentage)
  2. APACHE-II Acute physiological and chronic health evaluation, Non-neuro APACHE-II APACHE II minus the GCS component, CAM-ICU Confusion Assessment Method for the ICU, CRS-R The Coma Recovery Scale-Revised, Mdz Midazolam, Dxd Dexmedetomidine, SAE Sepsis-associated encephalopathy, ICU Intensive care unit, (c)EEG (continuous) electroencephalogram, RDA Rhythmic delta activity, PDs Periodic discharges, PDR Posterior dominant rhythm, High grade mSynek scale High grade modified Synek scale defined as grade of III or more (please refer to Additional file 1: Table S1), SB Suppression-Burst; Discontinuous/Low voltage/Suppression-Burst/suppressed background: please refer to text for definition. Mann–Whitney, Fisher’s exact and χ2 tests were used to analyze differences in variables between groups, as appropriate. p < 0.05 was considered statistically significant and marked in bold in the table. Multivariate logistic regression was performed and showed that, after correction for disease severity, PDs occurrence negatively influenced survival