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Low serum sodium levels at hospital admission: Outcomes among 2.3 million hospitalized patients

Fig 4

Restricted cubic splines of the estimated probability of in-hospital mortality as a function of serum sodium levels for the different age groups.

These estimated probabilities were derived from a multinomial logistic regression models stratified by age.

Fig 4

doi: https://doi.org/10.1371/journal.pone.0194379.g004