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. 2014 Dec 26;9(12):e114369. doi: 10.1371/journal.pone.0114369

Table 4. Concordance of AKI designation.

Definition Comparison No AKI by RIFLE or AKIN AKI stage by RIFLE or AKIN
Risk/Stage 1 Injury/Stage 2 Failure/Stage 3
KDIGO RIFLE
NO AKI 614(61.1%) 0 0 0
Stage 1 61(6.1%)a 133(13.2%) 0 0
Stage 2 0a 0 104(10.3%) 0
Stage 3 7(0.7%)a 8(0.8%) 12(1.2%) 66(6.6%)
KDIGO AKIN
NO AKI 614(61.1%) 0 0 0
Stage 1 37(3.7%)b 157(15.6%) 0 0
Stage 2 3(0.3%)b 0 101(10.0%) 0
Stage 3 2(0.2%)b 0 0 91(9.1%)

AKI: acute kidney injury;

a

: K(+)R(−), AKI diagnosed by KDIGO criteria but not by RIFLE criteria.

b

: K(+)A(−), AKI diagnosed by KDIGO criteria but not by AKIN criteria.