A study conducted by Belirgan in Turkey in 2018 aimed to identify the prevalence of adult attention deficit hyperactivity disorder (ADHD) and comorbid axis-I disorders in two difference centre. The most common type of comorbid psychiatric disorders among ADHD patients were depressive disorders (40%-46%). 80.0-85% of ADHD patients were diagnosed with at least one additional psychiatric disorder and 31-47% were diagnosed with more than one additional psychiatric disorder. Only 15-30% of patients with ADHD attended the centre suspecting they had ADHD. Causes of applications to the centres included marriage/relationship problems (50-85%), personal problems (15-54%), and educational problems (10-46%). The prevalence of adult ADHD in the two centres was much higher than estimates for the general adult population. Almost all adult ADHD patients of both centres had at least one additional psychiatric disorder. Adult ADHD patients who have marriage/relationship, personal, and educational problems preferred applying to a centre expecting a treatment method other than pharmacotherapy. This is thought to be the first study to evaluate the prevalence of adult ADHD, their clinical presentation, and causes of application in a group expecting treatment method other than pharmacotherapy. However, further studies in other mental health centres with larger sample sizes are needed to improve the knowledge and experience in this field.
Belirgan, S., Ersoy, M. A., & Ersoy, H. T. (2018). Prevalence of adult attention deficit hyperactivity disorder and comorbid axis-I disorders among first time applied cases of a general psychiatry outpatient clinic and a private psychotherapy centre. Klinik Psikofarmakoloji Bulteni, 28(1), 25-35. doi:http://dx.doi.org/10.1080/24750573.2017.1384194