Table 2.

Outcomes for patients with maximum AKI severity by UO, SC, or both (n=23,866)

CharacteristicNo AKI (n=8179)Maximum AKI SeverityP Valuec
UO (n=14,177)SC (n=4694)Both (n=4995)
Duration of stage 3 AKI (d), mean (SD)N/A1.3 (0.6)3.5 (4)5.6 (6.9)<0.001
RRT during hospital stay4 (0)304 (2.1)232 (4.9)1251 (25)<0.001
Length of stay (d), median (Q1, Q3)a
 ICU3 (2–4)5 (3–9)4 (2–6)7 (4–15)<0.001
 Hospital7 (5–11)13 (8–22)14 (8–24)22 (12–38)<0.001
Mortality
 Hospital350 (4.3)1761 (12.4)788 (16.8)1597 (32)<0.001
 30 daysb425 (5.2)1822 (12.9)808 (17.2)1375 (27.5)<0.001
 90 daysb596 (7.3)2710 (19.1)1074 (22.9)1890 (37.8)<0.001
 1 yearb1064 (13)3966 (28)1498 (31.9)2395 (47.9)<0.001
  • Data are presented as n (%) unless otherwise indicated. N/A, not applicable.

  • a Length of stay was calculated only in hospital survivors.

  • b Days from ICU admission.

  • c P values are shown for difference among the three groups of AKI patients. Patients without AKI are also shown but are not formally compared.