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Table 3 Distribution of patients over different KDIGO serum creatinine and urine output acute kidney injury stages maximally reached within indicated observation periods

From: Urinary chitinase 3-like protein 1 for early diagnosis of acute kidney injury: a prospective cohort study in adult critically ill patients

Time window

Maximum AKI stage Number (%)

UO 0a

UO 1a

UO 2a

UO 3a

Total in row

12 h

SCr 0a

140 (77)

â–‘ 11 (6)

â–’ 2 (1)

â–“ 0 (0)

153 (85)

24 h

122 (67)

â–‘ 19 (10)

â–’ 4 (2)

â–“ 0 (0)

145 (80)

7 days

95 (52)

â–‘ 23 (13)

â–’ 2 (1)

â–“ 0 (0)

120 (66)

12 h

SCr 1a

â–‘ 21 (12)

â–‘ 3 (2)

â–’ 0 (0)

â–“ 0 (0)

24 (13)

24 h

â–‘ 27 (15)

â–‘ 4 (2)

â–’ 0 (0)

â–“ 0 (0)

31 (17)

7 days

â–‘ 35 (19)

â–‘ 7 (4)

â–’ 3 (2)

â–“ 0 (0)

45 (25)

12 h

SCr 2a

â–’ 1 (1)

â–’ 1 (1)

â–’ 0 (0)

â–“ 0 (0)

2 (1)

24 h

â–’ 0 (0)

â–’ 2 (1)

â–’ 0 (0)

â–“ 0 (0)

2 (1)

7 days

â–’ 4 (2)

â–’ 4 (2)

â–’ 3 (2)

â–“ 0 (0)

11 (6)

12 h

SCr 3a

â–“ 1 (1)

â–“ 1 (1)

â–“ 0 (0)

â–“ 0 (0)

2 (1)

24 h

â–“ 2 (1)

â–“ 1 (1)

â–“ 0 (0)

â–“ 0 (0)

3 (2)

7 days

â–“ 4 (2)

â–“ 1 (1)

â–“ 0 (0)

â–“ 0 (0)

5 (3)

12 h

Total in column

163 (90)

16 (9)

2 (1)

0 (0)

181 (100)

24 h

151 (83)

26 (14)

4 (2)

0 (0)

181 (100)

7 days

138 (76)

35 (19)

8 (4)

0 (0)

181 (100)

  1. Patients with different stages of severity of acute kidney injury (AKI) diagnosed and classified by the Kidney Disease | Improving Global Outcomes (KDIGO) serum creatinine (SCr) or urine output (UO) criteria (AKI SCr/UO ) are marked with a different shaded rectangle: the darker this shade, the worse the kidney injury. a SCr 0 represents no AKI based on the KDIGOSCr criteria. Likewise, UO 0 represents no AKI based on the KDIGOUO criteria. SCr 1/2/3 represents AKI stage 1/2/3 based on the KDIGOSCr criteria. Likewise, UO 1/2/3 represents AKI stage 1/2/3 based on the KDIGOUO criteria