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Table 1 Characteristics of patients with acute respiratory distress syndrome

From: Incidence and outcomes of acute respiratory distress syndrome in intensive care units of mainland China: a multicentre prospective longitudinal study

Parameter

ARDS

Mild

Moderate

Severe

P valuea

n = 527

n = 51

n = 250

n = 226

 

APACHEII

17.2 ± 7.8

15.8 ± 8.6

16.1 ± 7.4

18.8 ± 7.8

0.000

SOFA

7.4 ± 3.8

6.4 ± 3.8

6.8 ± 3.7

8.2 ± 3.9

0.000

Age, mean, years

55.2 ± 17.4

52.7 ± 17.8

54.2 ± 17.6

57.0 ± 17.0

0.065

Men, no. (%)

369 (70.0)

26 (51.0)

185 (74.0)

158 (69.9)

0.005

BMI

24.2 ± 4.6

23.6 ± 5.1

24.3 ± 4.6

24.2 ± 4.4

0.282

Obesity, no. (%)

65 (12.4)

4 (8.0)

29 (11.7)

32 (14.2)

0.4297

Chronic lung diseases

30 (5.7)

0 (0.0)

15 (6.0)

15 (6.7)

0.151

Hypertension

176 (33.6)

12 (23.5)

79 (31.6)

85 (38.1)

0.090

Diabetes

101 (19.3)

8 (15.7)

56 (22.4)

37 (16.7)

0.228

Coronary diseases

57 (10.9)

0 (0.0)

25 (10.0)

32 (14.3)

0.010

Chronic cardiac failure

26 (5.0)

2 (3.9)

14 (5.6)

10 (4.5)

0.806

Cerebral vascular diseases

52 (9.9)

1 (2.0)

32 (12.8)

19 (8.5)

0.040

Chronic renal failure

56 (10.7)

5 (9.8)

22 (8.8)

29 (13.1)

0.315

Liver cirrhosis

21 (4.0)

1 (2.0)

14 (5.6)

6 (2.7)

0204

Connective tissue diseases

35 (6.7)

1 (2.0)

20 (8.0)

14 (6.3)

0.275

Active neoplasm

41 (7.8)

5 (9.8)

16 (6.4)

20 (9.0)

0.500

Alcohol use disorder

21 (4.0)

2 (3.9)

15 (6.0)

4 (1.8)

0.051

Smoking

180 (34.4)

15 (29.4)

90 (36.0)

75 (33.6)

0.636

  1. APACHE acute physiology and chronic health evaluation, SOFA sequential organ failure assessment, BMI body weight index
  2. aP value represents comparisons across the ARDS severity categories for each variable