|  | All AKI | Peak AKI 2 & 3 only |
---|---|---|---|
Total number of patients N (%) | 93,196 (100) | 23,993 (100) | |
Age at alert (Median IQR) |  | 78.2 (67.2–86.0) | 76.8 (66.1–85.1) |
 |  | N (%) | N (%) |
Sex | Male | 45,069 (48.4) | 12,072 (50.3) |
Female | 48,127 (51.6) | 11,921 (49.7) | |
Ethnicity | White | 77,853 (91.4) | 19,950 (91.5) |
Asian | 4,042 (4.7) | 1,016 (4.7) | |
Black | 1,772 (2.1) | 444 (2) | |
Mixed | 362 (0.4) | 101 (0.5) | |
Other | 1,178 (1.4) | 285 (1.3) | |
Deprivation quintile (IMD) | 1 (Least deprived) | 16,084 (17.3) | 4,019 (16.8) |
2 | 17,985 (19.3) | 4,539 (18.9) | |
3 | 18,735 (20.1) | 4,818 (20.1) | |
4 | 19,520 (21) | 5,128 (21.4) | |
5 (Most deprived) | 20,872 (22.4) | 5,489 (22.9) | |
Reweighted Charlson Comorbidity Index | CCI = 0 | 27,390 (29.4) | 6,494 (27.1) |
CCI = 1 | 14,645 (15.7) | 3,444 (14.4) | |
CCI = 2 | 19,204 (20.6) | 5,008 (20.9) | |
CCI > 2 | 31,957 (34.3) | 9,047 (37.7) | |
Peak AKI stage | 1 | 69,203 (74.3) | Â |
2 | 14,749 (15.8) | 14,749 (61.5) | |
3 | 9,244 (9.9) | 9,244 (38.5) | |
Hospital setting | Medical ward | 66,189 (71.0) | 17,132 (71.4) |
Surgical ward | 23,419 (25.1) | 5,720 (23.8) | |
Acute care setting | 1,310 (1.4) | 511 (2.1) | |
Renal Unit | 1,047 (1.1.) | 321 (1.3) | |
Other | 1,231 (1.3) | 309 (1.3) | |
Admission method | Emergency | 82,835 (88.9) | 21,324 (88.9) |
Elective | 10,361 (11.1) | 2,669 (11.1) | |
Season | Autumn | 21,737 (23.3) | 5,492 (22.9) |
Spring | 24,033 (25.8) | 6,099 (25.4) | |
Summer | 21,531 (23.1) | 5,502 (22.9) | |
Winter | 25,895 (27.8) | 6,900 (28.8) | |
Primary diagnosis of infection | No | 70,506 (75.7) | 17,776 (74.1) |
Yes | 22,690 (24.4) | 6,217 (25.9) |