Demographic and clinical data of the study groups.

aData are mean±SD; (y) = years; (f) = female; (m) = male.bTrauma-exposed patients received amitriptylin (n = 2), PTSD patients mirtazapin (n = 2) and amitriptylin+mirtazapin (n = 1).cThese scores were only available for ethnically matched controls recruited by the Trauma Center of University of Konstanz (n = 9).dTrauma-exposed individuals without PTSD were of Caucasian origin (n = 6) (two from Iran and two from Turkey, one from Bosnia and one from Afghanistan) and 3 were Black-Africans (one from Gambia, one from Eritrea and one from Senegal).eTrauma- exposed individuals with PTSD were Caucasians (n = 8) (two from Turkey, two from Iran, one from Afghanistan, one from Syria, one from Kosovo and one from Bosnia) and two were Black-Africans (one from Nigeria and one from Togo).fControls were Caucasians (twenty were Germans, one each were from Turkey, Armenia, Israel, two from Romania and two were Russians) and 2 were from Africa (Eritrea and Sudan).*Significantly higher values compared to trauma-exposed individuals without PTSD and to healthy controls.#Significantly higher values compared to healthy controls.