Table 6.
Patient characteristics according to CKD classification at three months.
| Variable | CKD status at 3 months (N = 199)∗ | ||||
|---|---|---|---|---|---|
| No CKD (N=74) | CKD creatinine and cystatin C (N=52) | P compared to no CKD | CKD cystatin C only (N=83) | P compared to no CKD | |
| Age | 51.5 (35–62) | 72.5 (66.5–81.5) | <0.001∗ | 68 (60–73) | <0.001∗ |
| Gender (female) | 31 (41.9%) | 29 (55.8%) | 0.149 | 30 (36.2%) | 0.513 |
| Hypertension | 18 (24.2%) | 34 (65.4%) | <0.001∗ | 46 (55.4%) | <0.001∗ |
| Cardiovascular disease | 14 (18.9%) | 20 (38.5%) | 0.024∗ | 33 (39.8%) | 0.005∗ |
| Diabetes | 8 (10.8%) | 18 (34.6%) | 0.002∗ | 19 (22.9%) | 0.057 |
| COPD | 6 (8.1%) | 10 (19.3%) | 0.101 | 15 (18.1%) | 0.099 |
| Heart failure | 6 (8.1%) | 9 (17.3%) | 0.162 | 11 (13.4%) | 0.316 |
| Invasive ventilation | 34 (46%) | 21 (40.4%) | 0.587 | 34 (41%) | 0.627 |
| CRRT | 10 (13.5%) | 14 (26.9%) | 0.069 | 27 (32.5%) | 0.008∗ |
| LOS | 5 (3–8) | 5.5 (3–12) | 0.783 | 8 (3–15) | 0.189 |
| Mortality at 2 years | 8.1% | 23.1% | 0.022∗ | 13.2% | 0.441 |
∗One hundred ninety-nine patients because 2 of 201 patients in whom both biomarkers were measured at follow-up 2–7 months had CKD based on creatinine but not cystatin C; their data are not presented here.