Figure 2.

Restricted cubic splines of the crude probability of in-hospital mortality, discharge to a hospice, discharge to home, and discharge to a nursing facility as a function of serum sodium levels at hospital admission. These estimated probabilities were derived from a multinomial logistic regression model. Serum sodium levels were corrected by adding 1.6 mEq/L for each 100 mg/dl above 100 mg/dl of the concomitantly measured serum glucose levels.