Skip to main content

Table 2 Univariate analysis of baseline characteristics and interventions in ALI cases and matched controls

From: Risk factors for the development of acute lung injury in patients with infectious pneumonia

 

ALI cases

n = 112

Controls

n = 112

Odds ratio

P value

Baseline characteristics

Age (years)

Median (IQR)

64.5

(53.5-72.0)

62.0

(53.0-71.5)

1.00 (0.98-1.03)

0.65

Male gender

n (%)

56 (50)

61 (55)

1.43 (0.68-3.3)

0.52

BMI

Median (IQR)

26.7 (24.07-31.05)

26.4

(21.9-30.4)

1.00 (0.99-1.01)

0.48

Ever smoker

n (%)

66 (59)

52 (46)

1.24 (0.96-1.65)

0.07

Alcohol abuse

n (%)

13 (12)

9 (8)

1.28 (0.74-1.93)

0.37

Pneumonia type

   

0.007a

n (%)

    

   CAP

33 (29.5)

55 (49)

0.32 (0.15-0.63)

 

   HCAP

33 (29.5)

29 (26)

1.22 (0.66-2.27)

 

   HAP

46 (41)

28 (25)

2.10 (1.19-3.86)

 

Charlson score

Median (IQR)

3 (2-4)

2 (1-4)

1.0 (0.88-1.14)

0.26

Aspiration n (%)

8 (7.1)

4 (3.6)

1.84 (0.63-6.55)

0.25

Diabetes n (%)

25 (22)

33 (29)

0.71 (0.39-1.26)

0.24

Immunosuppression

n (%)

52 (46.4)

50 (44.6)

1.13 (0.54-2.36)

0.73

Pneumonia severity index score

Median (IQR)

115 (92-142)

101

(76-119)

1.02 (1.01-1.03)

< 0.001 a

Shock n (%)

47 (42)

9 (8)

16.3 (5.47-79.04)

< 0.001 a

Respiratory rate

Median (IQR)

23 (20-28)

20 (18-24)

1.04 (1.00-1.08)

0.05

SaO2/FiO2

Median (IQR)

236

(107-336)

336

(247-448)

0.995 (0.993-0.997

< 0.001 a

Bilateral infiltrates

n (%)

61 (54.5)

31 (38.2)

3.67 (1.92-7.61)

< 0.001 a

Pleural effusion

n (%)

23 (20.5)

17 (15.4)

1.34 (0.68-2.69)

0.38

Interventions

Time to antibiotics (hours)

Median (IQR)

0 (0-9)

0 (0-3)

1.00 (0.99-1.02)

0.11

Appropriate initial antimicrobial treatment

n (%)

62 (55.4)

85 (75.9)

0.29 (0.13-0.58)

< 0.001 a

Any transfusion

n (%)

38 (33.9)

15 (13.4)

4.53 (2.08-11.59)

< 0.001 a

   Platelets

15 (13.4)

4 (3.6)

6.50 (1.47-59.33)

0.0098 a

   Red blood cells

31 (27.7)

13 (11.6)

4.0 (1.59-11.96)

0.002 a

   Fresh frozen plasma

10 (8.9)

1 (0.9)

-

0.008 a

Corticosteroids systemic

n (%)

48 (42.9)

51 (45.5)

0.89 (0.51-1.55)

0.67

Mechanical ventilation

n (%)

95 (85)

24 (21)

29.4 (10.2-141.17)

< 0.001 a

Invasive

80 (71)

19 (17)

18.36 (7.24-66.69)

 

Noninvasive

15 (14)

5 (4)

2.83 (1.13-8.25)

 
  1. BMI, Body mass index; CAP, community-acquired pneumonia; HAP, hospital-acquired pneumonia; HCAP, healthcare-associated pneumonia; IQR, interquartile range.a
  2. a- statistically significant