Table 3.
Association of pre-existing eGFR and proteinuria with acute kidney injury stratified by age (N = 3471)
| eGFR (mL/min/1.73m 2 ) | Total |
With AKI
N (%) |
Stratum-specific adjusted a OR for acute kidney injury (95%CI) | P -value for interaction b | |
| Age 65–79 | ≤29 | 102 | 13 (12.8) | 2.90 (1.46–5.77) | 0.007 |
| 30–59 | 586 | 74 (12.6) | 3.29 (2.20–4.94) | ||
| ≥60 | 1038 | 43 (4.1) | 1 | ||
| Total | 1726 | 130 (7.5) | |||
| Age 80 or above | ≤29 | 178 | 41 (23) | 5.51 (3.28–9.27) | |
| 30–59 | 901 | 91 (10.1) | 1.96 (1.30–2.96) | ||
| ≥60 | 666 | 36 (5.4) | 1 | ||
| Total | 1745 | 168 (9.6) | |||
| Proteinuria | Total |
With AKI
N (%) |
Stratum-specific adjusted a OR for acute kidney injury (95%CI) | P -value for interaction b | |
| Age 65–79 | No | 1057 | 57 (5.4) | 1 | 0.34 |
| Yes | 669 | 73 (10.9) | 1.42 (0.96–2.08) | ||
| Total | 1726 | 130 (7.5) | |||
| Age 80 or above | No | 1088 | 89 (8.2) | 1 | |
| Yes | 657 | 79 (12) | 1.11 (0.79–1.55) | ||
| Total | 1745 | 168 (9.6) |
AKI acute kidney injury (%) row percentage eGFR estimated glomerular filtration rate aModel 5 in Table 2
OR odds ratio CI confidence interval blikelihood ratio test