Acute kidney injury in critically ill patients with traumatic brain injury: A single-center retrospective cohort study

Table 1 Demographic and baseline clinical characteristics of study population

Variable	Non-AKI group (n = 295)	AKI group (n = 36)	P value
Age (years)			< 0.0011
18-30	104 (35.25)	19 (52.78)
31-40	111 (37.63)	4 (11.11)
41-50	57 (19.32)	3 (8.33)
51-60	23 (7.8)	10 (27.78)
Sex			0.8311
Male	281 (95.25)	34 (94.44)
Female	14 (4.75)	02 (5.56)
Nationality			0.0911
Emirati	39 (13.22)	5 (13.89)
Non-Emirati
Asian	210 (71.19)	28 (77.78)
Middle eastern	32 (10.85)	1 (2.78)
African	11 (3.73)	0 (0)
European-American	3 (1.02)	2 (5.56)
Body mass index (kg/m2)	24 (22-26.65)	24.5 (22-27.03)	0.4362
Charlson comorbidity index	0.23 ± 0.78	0.72 ± 1.21	0.0233
Mechanism of injury			0.2161
Road traffic accident	194 (65.76)	21 (58.33)
Fall	83 (28.14)	15 (41.67)
Assault	16 (5.42)	0 (0)
Work related	2 (0.68)	0 (0)
Glasgow coma scale on admission to hospital	8 (6-11)	4 (3-8)	< 0.0012
Injury Severity Score on admission to hospital	17 (15-24.5)	23 (18-25)	0.0052
Acute physiology and chronic health evaluation-2 score on admission to intensive care unit	12 (8-18)	23 (15-28)	< 0.0012

¹Pearson χ² test.

²Mann-Whitney test.

³Independent samples t-test.

Values are presented as n (%), median (interquartile range), or mean ± SD. AKI: Acute kidney injury.