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Table 4 Baseline characteristics and outcomes of matched patients pairs (propensity score matched analysis)

From: Multiple-site decontamination regimen decreases acquired infection incidence in mechanically ventilated COVID-19 patients

Variables

Standard care group

Multiple site decontamination group

p value

SMD

 

n = 89

n = 89

  

Age, year

66 [55–71]

62 [55–71]

0.469

0.094

Male,—no. (%)

66 (74.2)

62 (69.7)

0.617

0.097

Body masse index, kg/m2

28.28 [24.69–31.38]

27.46 [24.39–31.40]

0.623

0.090

Comorbidities

 Chronic heart failure—no. (%)

15 (16.9)

13 (14.6)

0.837

0.063

 Chronic respiratory disease—no. (%)

15 (16.9)

11 (12.4)

0.524

0.137

 Chronic renal failure—no. (%)

5 (5.6)

5 (5.6)

1.000

0.00

 Cirrhosis—no. (%)

6 (6.7)

7 (7.9)

1.000

0.042

 Cancer—no. (%)

11 (12.4)

12 (13.5)

1.000

0.033

 Immunodepression—no. (%)

6 (6.7)

9 (10.1)

0.589

0.111

 Diabetes—no. (%)

28 (31.5)

24 (27.0)

0.621

0.101

 Hypertension—no. (%)

45 (50.6)

41 (46.1)

0.653

0.090

 Period of admission

  

0.254

 

 Spring–Summer 2020—no. (%)

35 (39.3)

39 (43.8)

 

0.05

 Fall–Winter 2020—no. (%)

37 (41.6)

28 (31.5)

 

0.10

 Spring–Summer 2021—no. (%)

4 (4.5)

10 (11.2)

 

0.07

 Fall–Winter 2021—no. (%)

13 (14.6)

12 (13.5)

 

0.01

 Inter-hospital transport—no. (%)

34 (38.2)

24 (27.0)

0.150

0.253

 Localization before ICU admission

  

0.919

 

 Emergency ward—no. (%)

47 (52.8)

44 (49.4)

 

0.03

 Acute care ward– no. (%)

38 (42.7)

42 (47.2)

 

0.05

 Home—no. (%)

3 (3.4)

2 (2.2)

 

0.01

 Simplified acute physiology score II

34 [27–43]

35 [27–45]

0.729

0.063

 Bacterial co-infection at admission—no. (%)

6 (6.7)

9 (10.1)

0.589

0.112

Biological parameters at admission

 Leucocytes × 109/L

8.10 [6.23–10.40]

9.20 [6.10–11]

0.602

0.044

 Lymphocytes × 109/L

0.72 [0.50–1.02]

0.65 [0.47–0.90]

0.273

0.078

 Platelets × 109/L

210 [165–259]

214 [169–293]

0.248

0.232

 Creatinine, µg/L

76 [61.60–101]

79 [63—103]

0.643

0.105

 Serum C-reactive protein, mg/mL

119 [72–234]

139 [90–228]

0.307

0.125

 Fibrinogene, g/L

6.60 [5.60–7.43]

7.14 [6.12–8]

0.19

0.22

 PaO2/FiO2 ratio, mmHg

100 [70–133.03]

100 [80–161.90]

0.291

0.098

Strategy for VAP diagnoses in center of admission

 Endotracheal aspiration

77 (86.5)

77 (86.5)

1.00

0.00

 Distally protected sample

12 (13.5)

12 (13.5)

1.00

0.00

 Broncho alveolar lavage

0

0

0.00

Early management

 High flow oxygenation before intubation—no. (%)

45 (50.6)

46 (51.7)

1.000

0.022

 Systemic antibiotic at admission—no. (%)

80 (89.9)

83 (93.3)

0.589

0.134

 Time from hospital admission to intubation, days

0 [0–2]

0 [0–2]

0.937

0.119

 Antiviral agents—no. (%)

35 (39.3)

33 (37.1)

0.877

0.047

 Steroids—no. (%)

59 (66.3)

63 (70.8)

0.628

0.099

Outcomes

 ICU acquired infection—no. (%)

51 (57.3)

29 (32.6)

0.002

 

 Ventilator-associated pneumonia—no. (%)

48 (53.9)

26 (29.2)

0.001

 

 Bloodstream infection—no. (%)

10 (11.2)

7 (7.9)

0.610

 

 Length of mechanical ventilation, days

15 [8–26]

16 [8–24]

0.791

 

 Length of stay, days

19 [10–30]

20 [12–30]

0.761

 

 Hospital death—no. (%)

29 (32.6)

15 (16.9)

0.024

 
  1. SMD Standardized mean difference