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Table 1 Clinical and demographic characteristics of H1N1 patients vs. positive bacterial culture patients and ICU ventilated controls

From: Plasma metabolomics for the diagnosis and prognosis of H1N1 influenza pneumonia

Variable

H1N1 patients (n = 29)

Positive bacterial culture (n = 29)

 Age yrs. (mean ± SD)

51.1 ± 13.2

70.4 ± 20.7

 Male/Female

13/16

13/16

 APACHE II/APACHE IIIa

23.5 ± 7.4

72.8 ± 24.4

 ICU LOS*

20.1 ± 14.5

1.7 ± 3.2

 Hospital LOS*

32 ± 23.8

10.4 ± 10.3

 Smoker

13

17

 Altered LOC

2

5

 Renal Failure

2

1

 CHF

3

6

 Alcohol

3

4

 Cerebrovascular Disease

3

4

Variable

H1N1 patients (n = 42)

ICU ventilated controls (n = 31)

 Age yrs. (mean ± SD)

45.7 ± 14.6

50.6 ± 13.8

 Male/Female

13/29

14/17

 BMI (mean ± SD)*

35.2 ± 12.6

30.7 ± 7.6

 APACHE II

22 ± 7.7

19.1 ± 5.7

 ICU LOS*

20.6 ± 15.6

4 ± 4.9

 Hospital LOS

31.5 ± 23.5

24.7 ± 33.9

  1. SD standard deviation, (%) of subjects, unless otherwise indicated, LOS Length of Stay, DBA Days before admission, APACHE II Acute Physiology and Chronic Health Evaluation II ICU scoring system, CHF congestive heart disease. aThe APACHE II score is for H1N1 and APACHE III is for positive bacterial culture, *reflects statistically significant difference in groups p < 0.05