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Table 2 Key patient features

From: Extracorporeal membrane oxygenation (ECMO) in patients with H1N1 influenza infection: a systematic review and meta-analysis including 8 studies and 266 patients receiving ECMO

Study

Patients admitted to ICU

Patients receiving ECMO

Case definition

Age(years)

Male gender

Obese

DM

Asthmaor COPD

Peri-partum

SOFA

Beutel et al. (2011)

25

17

C

45

64%

NA

NA

NA

NA

11

Chenaitia et al. (2011)

32

11

CS

33

36%

NA

NA

NA

NA

NA

Dubar et al. (2011)

315

11

C

NA

0

NA

NA

NA

100%

NA

Forrest et al. (2011)

17

17

CS

34

50%

NA

NA

NA

5%

8

Higgins et al. (2011)

722

68

CS

36

48%

50%

15%

30%

16%

NA

Holzgraefe et al. (2010)

13

13

C

31

38%

38%

23%

8%

23%

NA

Noah et al. (2011)

80

69

C

37

38%

NA

5%

10%

27%

9

Patroniti et al. (2011)

153

60

CS

39

57%

39%

6%

12%

8%

7

  1. C, confirmed H1N1 infection; COPD, chronic obstructive pulmonary disease; CS, confirmed or suspected H1N1 infection; DM, diabetes mellitus; ECMO, extracorporeal membrane oxygenation; NA, not available; SOFA, sepsis-related organ failure assessment