Although there is an ongoing discussion about variation of clinical characteristics of Generalized Anxiety Disorder (GAD) across different cultures and immigrant populations, there is great paucity of evidence regarding this area. That study was aimed to compare clinical characteristics of the GAD between Turkish immigrants, native Turkish and German patients. Turkish immigrants (Hannover-Germany) (n=36, F/M=27/9), Turkish (Ankara-Turkey) (n=52, F/M=40/12), German patients (Hannover-Germany) (n=35, F/M=20/15) were diagnosed with GAD according to the ICD-10 Criteria. Groups were assessed by Composite International Diagnostic Interview (CIDI), Hamilton Anxiety Scale (HAM-A), Hamilton Depression Scale (HAM-D), Penn State Worry Questionnaire (PSWQ), Generalized Anxiety Disorder Severity Scale (GADSS). German patients' educational level (years:13.4±3.1) was significantly higher and their age (35.4±11.3) was significantly lower than the other groups. Table summarises clinical characteristics of the groups (covariates:age&education). Turkish Immigrants Turkish German Statistics(MANOVA; posthoc:Bonferroni) HAM-A 36.4±8.3* 26.7±6.8 23.6±8 F=20.608. p<0.001 HAM-A-psychic 15.9±3.3* 11.2±2.7 11.4±3.5 F=24.329, p<0.001 HAM-A-somatic 20.5±5.8* 15.3±4.8 12.2±5.7 F=14.753, p<0.001 HAM-D 24±7.1* 14.6±5.6 14±5.3 F=27.240, p<0.001 PSWQ 65.5±8.6* 51.3±5.7 54.7±11.4 F=28.158, p<0.001 GADSS 16.9±2.6** 14.5±3.2 14.6±4.8 F=4.531, p=0.013 Main Worry Contents Health (own, others) Health (own, others) Future, Family wellbeing * p<0.001 ** p<0.05 only between Turkish immigrants and Turkish group Moreover, data on comorbidity structure, differential symptomatology will be reported. That study shows that Turkish immigrants with GAD had more severe anxiety and depression than the Turkish and German GAD patients. Worry contents in GAD vary widely based on the cultural backrounds. Suggestions for future research based on the results will be discussed.