: The objective of this study was to report the incidence of in-hospital serum ionized calcium derangement and its impact on mortality. We included 12,599 non-dialytic adult patients hospitalized at a tertiary medical center from January 2009 to December 2013 with normal serum ionized calcium at admission and at least 2 in-hospital serum ionized calcium values. Using serum ionized calcium of 4.60-5.40 mg/dL as the normal reference range, in-hospital serum ionized calcium levels were categorized based on the presence of hypocalcemia and hypercalcemia in hospital. We performed logistic regression to assess the relationship of in-hospital serum ionized calcium derangement with mortality. Fifty-four percent of patients developed new serum ionized calcium derangements: 42% had in-hospital hypocalcemia only, 4% had in-hospital hypercalcemia only, and 8% had both in-hospital hypocalcemia and hypercalcemia. In-hospital hypocalcemia only (OR 1.28; 95% CI 1.01-1.64), in-hospital hypercalcemia only (OR 1.64; 95% CI 1.02-2.68), and both in-hospital hypocalcemia and hypercalcemia (OR 1.73; 95% CI 1.14-2.62) were all significantly associated with increased in-hospital mortality, compared with persistently normal serum ionized calcium levels. In-hospital serum ionized calcium derangements affect more than half of hospitalized patients and are associated with increased in-hospital mortality.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7699179PMC
http://dx.doi.org/10.3390/medicines7110070DOI Listing

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