Table 3.

Independent risk factors associated with acute kidney injury. CI, confidence interval; CPB, cardiopulmonary bypass; OR, odds ratio; PFH, plasma-free haemoglobin; RACHS-1, Risk-Adjusted classification for Congenital Heart Surgery.

Risk factor	OR (95% CI)	P-value
Age (months)	0.964 (0.939–0.99)	0.007
RACHS-1	1.26 (0.76–2.10)	0.368
Preoperative serum creatinine	0.088 (0.0055–1.41)	0.086
CPB duration	1.02 (1.01–1.02)	<0.001
Peak PFH	1.00 (0.999–1.01)	0.268