Table 3.

Relationship between UO and SC criteria and clinical outcomes

SC Only (KDIGO Stage)UO Only
No AKIStage 1Stage 2Stage 3Total
No AKI
 Patients8179a3158b5421b440d17,198
 Dead4.3a5.3b7.9b17.7d5.9
 RRT0.0a0.0b0.1b1.1d0.1
Stage 1
 Patients1889b1262c3485c842e7478
 Dead8.0b11.3c13.0c32.1e13.6
 RRT0.3b0.7c0.6c10.9e1.7
Stage 2
 Patients618c476d1533d831e3458
 Dead11.3c23.9d21.5d44.2e25.5
 RRT1.0c1.3d1.7d21.7e6.3
Stage 3
 Patients371c321e1019e2200f3911
 Dead11.6c38.6e28.0e51.1f40.3
 RRT3.2c17.8e14.2e55.3f36.6
Total
 Patients11,057521711,458431332,045
 Dead5.610.513.042.614.0
 RRT0.31.41.734.65.6
  • Data are presented as the number of patients, percentage of hospital mortality, and percentage of RRT for patients by maximum AKI criteria (UO, SC, or both). Superscript letters denote similar outcome patterns.

  • a Group 1, no AKI by either criterion.

  • b Group 2, stages 1–2 by UO criteria but no AKI by SC or stage 1 by SC and no AKI by UO.

  • c Group 3, stages 1–2 by UO plus stage 1 by SC or stages 2–3 by SC alone.

  • d Group 4, stages 1–2 by UO plus stage 2 by SC or stage 3 by UO alone.

  • e Group 5, stage 3 by UO plus stages 1–2 by SC or stage 3 by SC plus stages 1–2 by UO.

  • f Group 6, stage 3 by both criteria.