Table 4.

Multivariate analysis of risk of dialysis initiation by a Cox regression model

	Hazard ratio	95% Confidence interval	P value
APACHE II	1.25	1.21–1.37	< 0.001
Gender (male)	0.84	0.48–1.49	0.56
Age (year)	1.01	0.99–1.04	0.34
SOFA score D1	1.09	0.87–1.36	0.45
Serum creatinine	0.79	0.36–1.70	0.54
Potassium (mmol/L)	1.21	0.82–1.78	0.33
pH (0.1)	0.08	0.01–10.08	0.31