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Table 1 Patient characteristics in group 1 (trauma)

From: Acute kidney injury subphenotypes based on creatinine trajectory identifies patients at increased risk of death

Clinical variables No acute kidney injury Acute kidney injury Total AKI versus no AKI p value
Total 1037 877 1914  
Baseline demographics
 Age, years 36.8 ± 20.7 41.4 ± 19.9 38.9 ± 20.4 <0.01
 Male sex, n (%) 678 (65) 691 (79) 1369 (72) <0.01
 Body mass index, kg/m2 25.6 ± 9.2 27.6 ± 6.8 26.5 ± 8 <0.01
Race, n (%)
 White 793 (77) 686 (78) 1479 (77) 0.96
 Hispanic 91 (9) 55 (6) 146 (8)  
 Black 64 (6) 56 (6) 120 (6)  
 Other 65 (6) 60 (7) 125 (7)  
 Unknown 24 (2) 20 (2) 44 (2)  
Comorbidities, n (%)
 Diabetes mellitus 34 (5) 61 (7) 95 (7.5) 0.01
 Cerebrovascular disease 171 (17) 227 (26) 398 (21) <0.01
 Chronic kidney disease 4 (<1) 14 (2) 18 (1) 0.02
 Injury Severity Score 23.1 ± 10.0 24.3 ± 10.2 23.6 ± 10.2 0.01
ICU events, n (%)
 Mechanical ventilation 701 (68) 657 (75) 1358 (71) <0.01
 Sepsis 235 (23) 236 (27) 471 (25) 0.01
 Septic shock 30 (3) 70 (8) 100 (5) <0.01
 Vasopressors 89 (9) 133 (15) 222 (12) <0.01
Admission status, n (%)
 Direct 719 (69) 645 (74) 1364 (71) <0.01
 Transfer 318 (31) 232 (26) 550 (29)  
 Unknown 4 (<1) 1 (<1) 5 (<1)  
KDIGO stage of acute kidney injury, n (%)
 Stage 0 1037 (100) 0 1037 (54)  
 Stage 1 0 807 (92) 807 (42)  
 Stage 2 0 48 (5) 48 (3)  
 Stage 3 0 22 (3) 22 (1)  
  1. AKI Acute kidney injury, ICU Intensive care unit, KDIGO Kidney Disease: Improving Global Outcomes
  2. Data shown as mean ± standard deviation, n (%) as appropriate