Skip to main content

Table 1 Characteristics and outcomes between influenza-associated ARDS patients with versus without early corticosteroid treatment

From: Impact of corticosteroid treatment on clinical outcomes of influenza-associated ARDS: a nationwide multicenter study

Variables

Early CS treatment (N = 85)

No early CS treatment (N = 156)

p value

Age

61.0 (56.0–68.0)

59.0 (49.0–65.5)

0.211

Male gender

52 (61.2)

101 (64.7)

0.674

APACHE II score

24.0 (18.0–30.0)

23.0 (17.0–29.0)

0.129

BMI

24.6 (22.1–28.1)

24.8 (21.2–28.1)

0.808

Comorbidity

 Malignancy

7 (8.2)

22 (14.1)

0.217

 Diabetes

26 (30.6)

43 (27.6)

0.655

 Cerebrovascular disease

8 (9.4)

10 (6.4)

0.445

 Chronic airway disease

10 (11.8)

11 (7.1)

0.237

 End-stage renal disease

7 (8.2)

7 (4.5)

0.257

 Congestive heart failure

11 (12.9)

15 (9.6)

0.515

Influenza

0.539

 Type A

61 (71.8)

118 (75.6)

 

 Type B

24 (28.2)

38 (24.4)

 

 PaO2/FiO2 ratio

87.5 (56.0–142.3)

84.0 (62.0–149.6)

0.670

Severity of ARDS

0.539

 Severe ARDS

46 (54.1)

95 (60.9)

 

 Moderate ARDS

32 (37.6)

41 (26.3)

 

 Mild ARDS

7 (8.2)

20 (12.8)

 

Laboratory data

 WBC count, ×103/μL

9.6 (5.5–15.5)

8.8 (5.9–13.0)

0.253

 Hemoglobin, g/dL

12.5 (10.5–14.2)

11.9 (10.0–13.5)

0.102

 Platelet count, ×103/μL

150.0 (108.5–200.5)

149.0 (102.0–210.0)

0.770

 Albumin, g/dL

2.9 (2.5–3.3)

2.9 (2.5–3.2)

0.670

 C-reactive protein, mg/dL

14.1 (4.2–23.3)

14.9 (6.7–23.0)

0.727

 Bacterial coinfectionsa

14 (16.5)

17 (10.9)

0.231

Specific treatment

 Mechanical ventilation

85 (100.0)

156 (100.0)

0.539

 Prone positioning or ECMO

36 (42.4)

56 (35.9)

0.334

  Prone positioning

29 (34.1)

29 (18.6)

0.011

  ECMO

11 (12.9)

30 (19.2)

0.281

 Vasopressor infusion

49 (57.6)

72 (46.2)

0.105

 Hemodialysis

16 (18.8)

24 (15.4)

0.587

Clinical outcomes

 Hospital mortality

37 (43.5)

30 (19.2)

< 0.001

 Hospital days in survivors

24.8 (17.1–40.1)

28.2 (19.1–44.4)

0.475

 ICU days in survivors

13.8 (8.4–23.0)

14.8 (9.1–21.8)

0.664

 Ventilator days in survivors

11.9 (8.4–25.3)

14.4 (7.8–21.7)

0.953

 ICU-free days at Day 28

0.0 (0.0–15.2)

9.2 (0.0–17.6)

0.012

 Ventilator-free days at Day 28

0.0 (0.0–17.1)

11.0 (0.0–19.6)

0.009

  1. APACHE II Acute Physiology and Chronic Health Evaluation II, ARDS acute respiratory distress syndrome, BMI body mass index, CS corticosteroid, ECMO extracorporeal membrane oxygenation, FiO2 fraction of inspired oxygen, PaO2 partial pressure of arterial oxygen, WBC white blood cell
  2. Statistics are presented as the median (25th–75th percentiles) for continuous variables and as number (%) for categorical variables, as appropriate. p values are calculated by Mann–Whitney U test (or known as Wilcoxon rank sum test) and Chi-square test for continuous and categorical variables, respectively
  3. aBacterial coinfection was defined as positive bacterial cultures from blood, pleural effusion, lower respiratory tract secretion, or urine samples within 48 h of ARDS diagnosis