Skip to main content

Table 2 The patient characteristics based on their clinical course

From: The value of radiographic findings for the progression of pandemic 2009 influenza A/H1N1 virus infection

 

General ward

PICU

MV

P- values

(N = 172)

(N = 31)

(N = 12)

Age (years)

    

0–1

13 (7%)

2 (7%)

1 (8%)

0.10

1–2

8 (5%)

1 (3%)

0 (0%)

2–5

41 (24%)

6 (19%)

3 (25%)

5–10

79 (46%)

20 (64%)

8 (67%)

>10

31 (18%)

2 (7%)

0 (0%)

Gender male

111 (65%)

21 (68%)

8 (67%)

0.12

Underlying medical conditions

    

None

48 (28%)

12 (39%)

3 (25%)

0.65

Asthma

51 (30%)

6 (19%)

5 (42%)

Asthmatic diseases+

27 (16%)

2 (6%)

2 (17%)

Other respiratory problems++

6 (3%)

1 (3%)

1 (8%)

Immunocompromised*

2 (1%)

2 (7%)

0 (0%)

Others**

38 (22%)

8 (26%)

1 (8%)

Heart Rate on admission (bpm, median)

146

147

152

0.71

IQR

136 - 158

126 - 152

132 - 180

Respiratory Rate on admission (bpm, median)

37

39

39

0.16

IQR

28 - 42

24 - 44

26 - 45

Body Temperature on admission (°C, median)

38.5

38.2

38.0

0.04

IQR

38.0 - 39.1

37.9 - 39.3

37.2 - 39.1

SpO2 on admission (%, median)

96

93

96

0.05

IQR

93 - 99

92 - 96

90 - 99

O2 demand on admission YES

16 (9%)

24 (77%)

11 (92%)

< 0.001

O2 demand during admission YES

118 (69%)

26 (84%)

12 (100%)

0.13

Time from the onset of illness (hours)

    

0–5

51 (30%)

4 (13%)

2 (17%)

0.99

6–11

40 (23%)

5 (16%)

3 (25%)

12–23

66 (37%)

6 (19%)

3 (25%)

24–47

10 (6%)

9 (29%)

1 (8%)

48 -

4 (3%)

5 (16%)

3 (25%)

Unknown

1 (1%)

2 (6%)

0 (0%)

Antibiotic use YES

72 (42%)

25 (81%)

12 (100%)

< 0.001

Antiviral use YES

160 (93%)

31 (100%)

12 (100%)

0.77

  1. + Asthmatic diseases were defined as disorders including asthmatic bronchitis and cough variant asthma, but without a diagnosis of asthma.
  2. ++ “Other respiratory problems” included pulmonary hypoplasia, extralobar pulmonary sequestration, tracheal stenosis, and chronic lung disease.
  3. * “Immunocompromised” was used to indicate patients with nephrotic syndrome, and who were post-living donor liver transplantation for biliary atresia and propionic acidemia.
  4. ** Others included chromosomal abnormalities, renal diseases, and congenital heart diseases.
  5. IQR: interquartile range.