The clinical relevance of plasma potassium abnormalities on admission in trauma patients: a retrospective observational study

Table 1 Characteristics of the study population

Characteristics	Value
No. of patients	520
Age, year, median [IQR]	61 [35, 74]
Sex, male, n (%)	355 (68.3)
Type of trauma
Blunt injury, n (%)	510 (98.1)
Penetrating injury, n (%)	10 (1.9)
Transferred from another hospital, n (%)	111 (21.3)
Laboratory values upon admission
Potassium, mEq/L, mean [range]	3.61 [2.49, 5.72]
Hypokalemia (<3.5 mEq/L), n (%)	227 (43.7)
Normokalemia (3.5–<5.0 mEq/L), n (%)	286 (55.0)
Hyperkalemia (≥5.0 mEq/L), n (%)	7 (1.3)
Scores
ISS, median [IQR]	25 [19, 30]
RTS, median [IQR]	7.84 [6.49, 7.84]
TRISS Ps, median [IQR]	0.89 [0.73, 0.95]
LSI for bleeding^a, n (%)	117 (22.5)
Craniotomy, n (%)	64 (12.3)
In-hospital mortality, n (%)	44 (8.5)

IQR inter-quartile range, ISS Injury Severity Score, RTS Revised Trauma Score, TRISS Ps probability of survival calculated by the method of the Trauma Score and the Injury Severity Score, LSI life-saving intervention
^aThe LSI for bleeding was defined as intra-aortic balloon occlusion, transcatheter arterial embolization, massive transfusion, thoracotomy, or laparotomy

ISSN: 2052-0492