Table 2.

Multivariable analysis was deduced from the backward selection using the Akaike Information Criterion method.

Characteristic	Odds Ratio	95% Confidence Interval	p-Value
Age	0.98	0.96, 1.00	0.083
Admission Sodium level value	0.91	0.86, 0.96	0.001
Liver cirrhosis	0.30	0.09, 0.86	0.035
Fluid restriction	0.46	0.23, 0.90	0.025