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. 2015 Mar 23;10(3):e0120863. doi: 10.1371/journal.pone.0120863

Fig 1. Study design and flow diagram.

Fig 1

1 High Risk for AKI—major surgery and one additional risk factor—critical illness, sepsis, major trauma, chronic renal disease or use of radiocontrast agent.2 AKI was defined according to KDIGO 2012 criteria by creatinine increase of > 0.3 after surgery.