Table 2.

Independent predictors of acute kidney injury by multivariable logistic regression models.

Variable	Univariate				Multivariate
	p-value	OR	95% CI		p-value	OR	95% CI
Age (years)	0.184	1.148	0.936	1.408	0.226	1.009	0.994	1.024
Male sex	0.275	1.004	0.997	1.011	0.065	1.493	0.976	2.284
Hypertension	<0.001	2.026	1.514	2.711	0.008	1.771	1.162	2.699
Diabetes mellitus	<0.001	1.740	1.369	2.213	0.223	1.260	0.868	1.829
Coronary heart disease	0.001	1.526	1.184	1.968	0.018	1.543	1.078	2.209
Heart rate (bpm)	0.025	1.005	1.001	1.008	0.197	1.005	0.998	1.012
pH	<0.001	0.066	0.023	0.192	0.002	0.058	0.010	0.348
Haemoglobin (g/L)	<0.001	0.989	0.985	0.992	0.875	0.999	0.993	1.006
ALB (g/L)	<0.001	0.965	0.949	0.983	0.021	0.966	0.938	0.995
Cr (µmol/L)	<0.001	1.003	1.003	1.004	0.004	1.001	1.000	1.002
NT-proBNP/10,000 (pg/mL)	<0.001	1.373	1.244	1.515	0.009	1.202	1.047	1.380
Inotropic agent	<0.001	2.879	2.036	4.072	<0.001	0.233	0.127	0.428

ALB, serum albumin; CI, confidence interval; Cr, creatinine; NT-proBNP, N-terminal pro-brain natriuretic peptide; OR, odds ratio.