Table 1

Patient characteristics

Total material
n=4230
No renal injury
n=4115
Renal injury
n=115
P value
Age, years9 (4; 14)9 (4; 14)14 (9; 16)<0.001
Male gender, n (%)2674 (63.2)2596 (63.1)78 (67.8)0.299
GCS score15 (15; 15)15 (15; 15)15 (15; 15)0.743
ISS5 (1; 15)5 (1; 11)17 (16; 33)<0.001
TRISS 09 Ps0.99 (0.99; 0.99)0.99 (0.99; 0.99)0.99 (0.96; 0.99)<0.001
Blunt injury, n (%)4071 (96.2)3958 (96.2)113 (98.3)0.248
Traffic incidents, n (%)1363 (32.2)1324 (32.2)39 (33.9)0.694
Transfused, n (%)107 (2.5)94 (2.3)13 (11.3)<0.001
ED surgery, n (%)13 (0.3)10 (0.2)3 (2.6)0.005
Intubated, n (%)646 (15.3)620 (15.1)26 (22.6)0.027
TTA, n (%)3944 (93.2)3839 (93.3)105 (91.3)0.350
Mortality, n (%)57 (1.3)50 (1.2)7 (6.1)<0.001
LOS ICU, days1 (0; 2)1 (0; 2)2 (1; 3)<0.001
LOS hospital, days2 (1; 6)2 (1; 5)5 (3; 7)<0.001
Primary admission, n (%)2622 (62.0)2581 (62.7)41 (35.7)<0.001
  • Primary admission refers to primary admission at Oslo University Hospital (OUH). Values are median and interquartiles when not stated otherwise. Number of patients with missing values in total material and no renal injury: patients transfused 7, GCS score 2, LOS ICU 1 day.

  • ED, emergency department; GCS, Glasgow Coma Scale; ICU, intensive care unit; ISS, Injury Severity Score; LOS, length of stay; TRISS 09 Ps, Trauma and Injury Severity Score 2009 revision Probability of survival; TTA, trauma team activation.