Table 2.

Description of 624 Emergency Department Patients with Severe Hyponatremia

Factor	Value
Mean patient age (SD)	68.2 ± 15.5
Female	379 (60.7%)
Median initial Na (IQR)	113 (110–114)
Malnourished*	40 (6.4%)
Serum K < 3.0 mMol	144 (23.1%)
eGFR < 30 mL/min/1.73 m2	80 (12.8%)
Admitted to hospital	616 (98.7%)
Died in ED or hospital	59 (9.5%)
Median encounter duration in days (IQR)	7 (3–13)

*Stated in any consult note. SD, standard deviation; IQR, interquartile range; K, potassium; eGFR, estimated glomerular filtration rate; ED, emergency department