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Table 1 Some characteristics of all the 1325 included patients

From: Evaluation of the Scandinavian guidelines for head injuries based on a consecutive series with computed tomography from a Norwegian university hospital

General characteristics N = 1325
Gender  
 Male 754 (56.9%)
Age  
 Median [Range] 35 [0-100]
 Infant/toddler (0-3) 24 (1.8)
 Children (4-15) 169 (12.8%)
 Adolescents/young adults (16-20) 160 (12.1%)
 Adults (21-64) 673 (50.8%)
 Elderly (≥65) 299 (22.6%)
Trauma mechanism  
 Falls 688 (51.9%)
 Traffic accidents 349 (26.3%)
 Violent assaults 107 (8.1%)
 Other* 140 (10.6%)
 Unknown/missing data 41 (3.1%)
Time from trauma to CT scan  
 Median 2.6 hours
 <12 hours 785 (59.2%)
 >12 hours 94 (7.1%)
 Unknown/missing data 446 (33.7%)
Time of CT scan  
 Weekday (Mon-Fri, 08-15) 343 (25.9%)
 Weekday evening (Mon-Fri 15-22) 288 (21.7%)
 Weekday night (Mon-Thu 22-08) 143 (10.8%)
 Weekend/Holiday (Fri -Mon 15-08) 551 (41.6%)
  1. *Includes head traumas without falling or violence and/or possible medical cause of trauma (e.g. syncope, epilepsy, cardiac arrest etc.).