3.1. Demographics of the groups
The mean age of the patients in the trauma group (boys: 61 girls: 40) was 7.8 years (standard deviation = 4.77, range = 0.8-17 years), and the control group 8 years (standard deviation = 3.9, range = 1-17 years). 86 of the cases in the trauma group were exposed to the blunt force, 15 to penetrating trauma, and 54 patients had multiple trauma. Surgical procedures were performed in 17 patients. The organs and systems of the cases affected by trauma were shown in Table 1. The most commonly affected organ was the spleen (n = 37).