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Table 1 Characteristics of the study population

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

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 bleedinga, n (%) 117 (22.5)
Craniotomy, n (%) 64 (12.3)
In-hospital mortality, n (%) 44 (8.5)
  1. 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
  2. aThe LSI for bleeding was defined as intra-aortic balloon occlusion, transcatheter arterial embolization, massive transfusion, thoracotomy, or laparotomy