Occurrence of Hypernatremia
Predictive factors affecting the occurrence of hypernatremia by
tolvaptan were analyzed. As shown in Table S1, hypernatremia
was reported in 35 patients, but ADRs were based on the physicians’
reports without standardized definitions. Therefore, we
redefined hypernatremia for the risk analysis as having a serum
sodium level ≥150 mEq/L during the tolvaptan treatment period.
As a result, 40 patients were extracted and 1 was excluded
from this analysis because of a lack of data at BL. Characteristics
and demographic data for patients with hypernatremia are shown
in Table 3.