Table 2. Risk factors independently associated to in-hospital mortality.

Multivariable logistic regression analysis. Variables entered in the model are those showed in Table 1.

	OR (CI 95%)	p
Age (yrs)	0.975 (0.955–0.996)	0.017
Sepsis-MODS as cause of AKI	3.367 (1.689–6.7129)	0.001
Severe condition at admission	3.697 (1.692–8.077)	0.001
Oliguric AKI	2.045 (1.094–3.821)	0.025
Non recovery of renal function	21.970 (12.195–39.578)	<0.001
Mechanical ventilation	15.790 (7.285–34.225)	<0.001
In-hospital complication	2.375 (1.052–5.359	0.037
Length of hospital stay (days)*	1.042 (1.023–1.061)	<0.001

For each day of hospital stay; MODS: multiorgan dysfunction syndrome.