Gender differences in terms of Axis I and Axis II comorbidity in patients with panic disorder Objectives: Comorbidity in psychiatric disorders significantly affects the clinical course, the severity of symptoms, and the response to the treatment. Panic disorder can cause considerable disability, reduction of interpersonal relationships, avoidance of certain social situations, and staying away from high-risk jobs and consequently lowering work performance causing loss of job. A number of studies have shown that panic disorder is observed more frequently in females, indicating a gender risk factor. This study investigated potential gender differences in the distribution of Axis I and Axis II comorbidity. Method: A total of 63 patients who satisfied the inclusion criteria and had been diagnosed with panic disorder according to DSM-IV participated in this study. 31 (49.2%) patients were female, and 32 (50.8%) were male. Panic disorder was diagnosed with SCID-I (Structured Clinical Interview for DSM-IV-TR Axis I Disorders). Sociodemographic data were collected using a form developed by the researchers, and the Panic Agoraphobia scale was applied in all cases. The existence of possible childhood separation anxiety was also investigated, and SCID-II was applied to identify Axis II personality disorders. Gender differences in demographic and clinical characteristics and in the comorbidity of Axis I and Axis II disorders were then investigated. Results: The reported prevalence of separation anxiety was considerably higher in the female than in the male patients. Depression, social anxiety disorder, and specific phobias were more common in the female patients, whereas alcohol abuse was more common among the male patients. There was no gender difference in Axis II comorbidity. Conclusions: This comparison of gender differences in Axis I and Axis II disorders that coexist with panic disorders indicated that comorbidities of depression, social and specific phobias, and alcohol abuse comorbidities are different among the genders. However, there appeared to be gender differences in Axis II comorbidities. Key words: Comorbidity, gender differences, panic disorder ÖZET Panik bozukluğu olan hastalarda Eksen I ve Eksen II eştanısı açısından cinsiyet farklılıkları Amaç: Eştanılı durumlar psikiyatrik hastalıkların klinik seyrini, belirti şiddetini ve tedavi cevabını önemli ölçüde etkilerler. Panik bozukluğu, önemli ölçüde yeti yitimine neden olabilen, kişilerarası ilişkilerde azalma, belirli sosyal durumlardan kaçınma, yüksek riskli işlerde çalışmaktan uzak durma, dolayısıyla çalışma performansında azalma ve işsiz kalma gibi ağır sonuçları olabilen bir hastalıktır. Diğer psikiyatrik bozukluklarla sıklıkla birlikte bulunabilmekte, bu durum da yeti yitimini artırmaktadır. Birçok çalışmada panik bozukluğunun kadınlarda sık görülen bir hastalık olduğu, kadın cinsiyetinin panik bozukluğu gelişmesinde önemli bir risk faktörü olduğu gösterilmiştir. Bu çalışmada panik bozukluğuna eşlik eden Eksen I ve Eksen II eştanıları dağılımının...