Table 2.
Sociodemographic and clinical characteristics of patients producing acute kidney injury alerts.
| Variable | Hospital site/period | P value | ||||||
| RFHa | BGHb | RFH pre vs RFH post | BGH pre vs BGH post | All RFH vs all BGH | ||||
| Prec | Postd | Pre | Post | |||||
| AKIe alerts, n | 994 | 480 | 654 | 350 | —f | — | — | |
| Alert severity, n (%) |
|
|
|
|
.102 | .01 | .32 | |
| AKI1 | 809 (81.4) | 411 (85.6) | 571 (87.3) | 281 (80.3) |
|
|
|
|
|
|
AKI2 | 127 (12.8) | 44 (9.2) | 60 (9.2) | 47 (13.4) |
|
|
|
|
|
AKI3 | 58 (5.8) | 25 (5.2) | 23 (3.5) | 22 (6.3) |
|
|
|
| Male, n (%) | 541 (54.4) | 257 (53.5) | 331 (50.6) | 186 (53.1) | .74 | .48 | .30 | |
| Age (years), median (interquartile range) | 73.00 (58.00-84.00) | 7.00 (57.00-83.00) | 82.00 (73.00-88.00) | 82.00 (73.25-88.75) | .14 | .81 | <.001 | |
| Ethnicity, n (%) |
|
|
|
|
.09 | .32 | <.001 | |
| White | 625 (62.9) | 281 (58.5) | 512 (78.3) | 274 (78.3) |
|
|
|
|
|
|
Black or Black British | 76 (7.7) | 34 (7.1) | 29 (4.4) | 12 (3.4) |
|
|
|
|
|
Asian or Asian British | 110 (11.1) | 52 (10.8) | 60 (9.2) | 25 (7.1) |
|
|
|
|
|
Mixed | 10 (1.0) | 2 (0.42) | 3 (0.5) | 4 (1.1) |
|
|
|
|
|
Other ethnic groups | 173 (17.4) | 111 (23.1) | 50 (7.7) | 35 (10.0) |
|
|
|
|
| ||||||||
| Index of Multiple Deprivation, n (%) |
|
|
.87 | .83 | <.001 | |||
| Quintile 1 (least deprived) | 184 (18.5) | 84 (17.5) | 42 (6.42) | 25 (7.1) |
|
|
|
|
|
|
Quintile 2 | 216 (21.7) | 130 (27.1) | 132 (20.2) | 60 (17.1) |
|
|
|
|
|
Quintile 3 | 233 (23.4) | 89 (18.5) | 183 (28.0) | 111 (31.7) |
|
|
|
|
|
Quintile 4 | 224 (22.5) | 111 (23.1) | 186 (28.4) | 99 (28.3) |
|
|
|
|
|
Quintile 5 (most deprived) | 97 (9.8) | 46 (9.6) | 108 (16.5) | 53 (15.1) |
|
|
|
|
|
Unknown | 40 (4.0) | 20 (4.2) | 3 (0.5) | 2 (0.6) |
|
|
|
| Charlson Score, n (%) |
|
|
|
|
.49 | <.001 | <.001 | |
| 0 | 114 (11.5) | 49 (10.2) | 10 (1.5) | 7 (2.0) |
|
|
|
|
|
|
1 | 51 (5.13) | 11 (2.3) | 25 (3.8) | 9 (2.6) |
|
|
|
|
|
2 | 63 (6.3) | 54 (11.2) | 29 (4.4) | 13 (3.7) |
|
|
|
|
|
3 | 107 (1.8) | 43 (9.0) | 78 (11.9) | 21 (6.0) |
|
|
|
|
|
4 | 169 (17.0) | 63 (13.1) | 150 (22.9) | 59 (16.9) |
|
|
|
|
|
≥5 | 490 (49.3) | 260 (54.2) | 362 (55.4) | 241 (68.9) |
|
|
|
| Pre-existing renal disease present, n (%) | 303 (30.5) | 162 (33.8) | 215 (32.9) | 158 (45.1) | .23 | <.001 | <.001 | |
aRFH: Royal Free Hospital.
bBGH: Barnet General Hospital.
cPre: May 2016 to January 2017.
dPost: May 2017 to September 2017.
eAKI: acute kidney injury.
fNot applicable.