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Table 2 Characteristics of the studies included in the meta-analysis

From: Protective mechanical ventilation in the non-injured lung: review and meta-analysis

  

Protective ventilation

Standard ventilation

   

First author, Year [Ref]

Number of patients

VT (ml/kg)

N

VT (ml/kg)

N

Setting

Design

Primary outcome

Lee 1990 [31]

103

6

47

12

56

ICU

RCT

Duration of MV

Chaney 2000 [14]

25

6

12

12

16

Surg

RCT

Lung mechanics

Wrigge 2004 [18]

62

6

30

12

32

Surg

RCT

Cytokines in BAL

Koner 2004 [15]

44

6

15

10

29

Surg

RCT

Cytokines in blood

Wrigge 2005 [16]

44

6

22

12

22

Surg

RCT

Cytokines in BAL

Zupancich 2005 [17]

40

8

20

10

20

Surg

RCT

Cytokines in BAL

Michelet 2006 [43]

52

5

26

9

26

Surg

RCT

Cytokines in blood

Cai 2007 [27]

16

6

8

10

8

Surg

RCT

Atelectasis

Wolthius 2008 [19]

40

6

21

12

19

Surg

RCT

Pulmonary Inflammation

Determan 2008 [26]

40

6

21

12

19

Surg

RCT

Cytokines in BAL

Weingarten 2010 [20]

40

6

20

10

20

Surg

RCT

Oxygenation

Determann 2010 [33]

150

6

76

10

74

ICU

RCT

Cytokines in BAL

Pinheiro de Oliveira 2010 [32]

20

6

10

12

10

ICU

RCT

Cytokines in BAL

Sundar 2011 [28]

149

6

75

10

74

Surg

RCT

Duration of MV

Treschan 2012 [23]

101

6

50

12

51

Surg

RCT

Spirometry

Severgnini 2013 [24]

55

7

27

9

28

Surg

RCT

Change in mCPIS

Futier 2013 [25]

400

6-8

200

10-12

200

Surg

RCT

Pulmonary and extrapulmonary complications

  1. BAL: bronchoalveolar lavage; ICU: intensive care unit; MV: mechanical ventilation; Surg: surgical; VT: tidal volume; mCPIS: modified Clinical Pulmonary Infection Score.