Table 5.

AKI outcomes: Effect of comorbidities (Khan's index)

CharacteristicAllRiskP
LowMediumHigh
n47439118317
Median age (yr; median [IQR])76.0 (66.9 to 83.9)58.2 (46.1 to 65.0)72.5 (64.9 to 75.0)81.8 (72.5 to 87.0)<0.001
Men in risk category (n [%])254 (54)26 (67)74 (63)154 (49)0.007
In-hospital mortality (n [%])155 (33)8 (20)41 (35)106 (33)0.234
90-d mortality (n [%])196 (41)10 (26)43 (36)143 (45)0.031
6-mo mortality (n [%])236 (50)10 (26)49 (42)177 (56)<0.001
Full recovery (n [%])321 (68)28 (72)73 (62)220 (69)0.289
RRT required (n [%])37 (8)10 (26)13 (11)14 (4)<0.001
Referred to nephrologist (n [%])119 (25)22 (56)42 (36)55 (17)<0.001
Hospital stay (d; median [IQR])17.0 (9.0 to 33.0)17.0 (9.0 to 23.0)17.0 (8.0 to 30.0)18.0 (9.0 to 33.5)0.637
Hospital stay (d; median [IQR])a19.0 (10.0 to 33.0)18.0 (9.0 to 35.0)17.0 (11.0 to 28.0)20.0 (9.0 to 36.0)0.784
  • a Excluding those who died during admission.