Table 1 Summary of patient details
From: The accuracy of diagnostic coding for acute kidney injury in England – a single centre study
2005 | 2010 | |||
|---|---|---|---|---|
N (%) | 95% CI | N (%) | 95% CI | |
Number of records examined | 58 (100%) | 63 (100%) | ||
Died during admission | 30 (50%) | 37-63% | 29 (46%) | 33-59% |
Male gender | 21 (36%) | 23-49% | 15 (24%) | 13-35% |
Diabetic | 25 (43%) | 30-56% | 21 (33%) | 21-45% |
Hypertensive | 18 (31%) | 19-43% | 19 (30%) | 19-42% |
Previous IHD or CVD | 11 (19%) | 9-29% | 8 (13%) | 4-21% |
Heart failure | 13 (22%) | 11-33% | 14 (22%) | 12-33% |
Recent diarrhoea/vomiting | 11 (19%) | 9-29% | 9 (14%) | 5-23% |
Admitted to ITU | 10 (17%) | 7-27% | 9 (14%) | 5-23% |
Haemodialysis/haemofiltration | 29 (50%) | 37-63% | 29 (46%) | 33-59% |
Pre-admission drug treatment | ||||
ACE Inhibitor | 19 (35%) | 22-48% | 14 (23%) | 12-34% |
ARB | 5 (9%) | 1-17% | 9 (15%) | 6-24% |
Loop diuretic | 29 (55%) | 37-63% | 18 (29%) | 17-40% |
Thiazide diuretic | 5(9%) | 1-16% | 3 (5%) | 0-10% |
NSAID | 6 (11%) | 2-19% | 3 (5%) | 0-11% |
Spironolactone | 8 (15%) | 5-24% | 6 (10%) | 2-18% |
Median (IQR) | Median (IQR) | |||
Age (years) | 79 (70–85) | 83 (73–88) | ||
Biochemical variables | ||||
Baseline eGFR (ml/min/1.73m 2 ) | 49 (29–62) | 45 (33–65) | ||
Baseline creatinine (μmol/L) | 120 (90–170) | 120 (90–155) | ||
Admission creatinine (μmol/L) | 265 (178–405) | 252 (191–435) | ||
Admission potassium (mmol/L) | 5.0 (4.3-6.0) | 4.5 (4.1-5.9) | ||
Admission bicarbonate (mmol/L) | 17.2 (12.9-21.1) | 21.5 (16.8-26.1) | ||
Admission systolic BP (mmHg) | 122 (105–143) | 127 (111–145) | ||