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Table 1 Summary of the characteristics of the studies comparing patients with and without mechanical ventilation.

From: Invasive mechanical ventilation as a risk factor for acute kidney injury in the critically ill: a systematic review and meta-analysis

Author/year

Inclusion diagnosis

Subgroup

Criteria type used

MV precedes AKI

Mataloun 2006 [17]

General population

Mixed

Absolute sCr rise

Yes

Payen 2008 [18]

General population

Mixed

Absolute sCr rise

Unclear

Fonseca Ruiz 2011 [26]

General population

Mixed

AKIN

Unclear

Medve 2011 [30]

General population

Mixed

AKIN

Unclear

Piccinni 2011 [33]

General population

Mixed

RIFLE

Unclear

Brito 2009 [19]

CABG

Cardiac disease

Dialysis, relative and absolute sCr rise

Yes

Marenzi 2010 [24]

STEMI with cardiogenic shock

Cardiac disease

Relative sCr rise

Yes

Iglesias 2010 [22]

Orthotopic liver transplant

Gastro-intestinal

AKIN

Yes

Lopes 2011 [28]

Cirrhosis

Gastro-intestinal

RIFLE

Unclear

O'Riordan 2011 [31]

Paracetamol hepatotoxicity

Gastro-intestinal

AKIN

Unclear

Abdulkader 2010 [21]

2009 Influenza A (H1N1)

Influenza A

RIFLE

Unclear

Jung 2011 [27]

2009 Influenza A (H1N1)

Influenza A

RIFLE

Unclear

Martin-Loeches 2011 [29]

2009 Influenza A (H1N1)

Influenza A

AKIN

Unclear

Pettila 2011 [32]

2009 Influenza A (H1N1)

Influenza A

RIFLE

Unclear

Shortgen 2001 [12]

Severe sepsis or septic shock

Sepsis

Relative sCr rise

Yes

Yegenaga 2004 [15]

SIRS/sepsis

Sepsis

Absolute sCr rise

Yes

Hoste 2003 [14]

Surgical sepsis

Sepsis

Absolute sCr rise

Unclear

Lopes 2009 [20]

Sepsis

Sepsis

AKIN and RIFLE

Unclear

Vivino 1998 [11]

Trauma

Miscellaneous

Absolute and relative sCr rise

Yes

Rocha 2005 [16]

Lung transplant

Miscellaneous

RIFLE and dialysis

Yes

Lahoti 2010 [23]

AML or high-risk MDS

Miscellaneous

RIFLE

Yes

Létourneau 2002 [13]

Bone marrow transplant

Miscellaneous

Absolute rise and relative sCr rise

Unclear

Murugan 2010 [25]

Community-acquired pneumonia

Miscellaneous

RIFLE

Unclear

  1. MV, mechanical ventilation; AKI, acute kidney injury; sCr, serum creatinine; CABG, coronary artery bypass grafting; STEMI, ST elevation myocardial infarction; SIRS, systemic inflammatory response syndrome; AML, acute myeloid leukaemia; MDS, myelodysplastic syndrome.