Objective: Attention deficit hyperactivity disorder (ADHD) is a psychiatric diagnosis that usually begins in childhood but can also be seen in adult-hood and can significantly affect the functioning of the individual. We investigated the diagnosis and symptoms of ADHD in women with vitamin D deficiency and its possible association with clinical variables.

Material and Method: One hundred and fifty healthy women and 150 women diagnosed with vitamin D deficiency were included in our study. Blood samples were collected from all participants to evaluate their 25 hydroxyvitamin D (25(OH)D) levels. Additionally, the Sociodemographic and Clinical Data Form, the Wender Utah Rating Scale-Short Form (WURS-25) and the Turkish version of the Adult ADHD Self-Report Scale (ASRS-v1.1) were administered.

Results: Participants with vitamin D deficiency scored higher on the Turkish version of the ASRS-v1.1 and WURS-25. Turkish version of the ASRS-v1.1 was positively correlated with WURS-25 and negatively correlated with vitamin D levels. Patients with WURS-25 scores of 36 and above were younger, more likely to be single, lived in urban areas, and had lower vitamin D levels and scored higher on the ASRS-v1.1. We analyzed the optimal cutoff point of vitamin D level, predicting a higher WURS-25 score. Vitamin D level was found to be significant for the WURS-25 score of 36 and above with a cutoff point of ≤24 (Area under curve:0.702, p =<0.001).

Conclusion: Attention-Deficit and Hyperactivity Disorder symptoms are commen among women with vitamin D deficiency during both childhood and adulthood. Early diagnosis and treatment of ADHD may be beneficial for patients with vitamin D deficiency.