Table 2.

HRs for 28-day mortality in AKI patients who received CRRT

Variable	HR (95% confidence interval)	P-value
Age	1.0 (1.0–1.0)	0.577
Sex	0.9 (0.3–2.5)	0.810
SOFA	1.2 (1.0–1.6)	0.079
Daily fluid balance	1.3 (1.0–1.7)	0.072
Lactate	1.1 (1.0–1.3)	0.060
BNP (>500 pg/ml)	1.7 (0.6–4.9)	0.331
ECW/TBW (≥0.41)	3.0 (0.9–9.8)	0.061

HR: hazard ratio; AKI: acute kidney injury; CRRT: continuous renal replacement therapy; SOFA: Sequential Organ Failure Assessment; BNP: brain natriuretic protein; ECW/TBW: the ratio of extracellular water to total body water.