The frequency of psychiatric disorder co‐morbidities in patients with fibromyalgia: A cross‐sectional study in Iran

AIM: This study aimed to investigate psychiatric disorders in Iranian female patients with fibromyalgia (FM). DESIGN: Female patients, newly diagnosed with FM, were interviewed by a psychiatrist for psychiatric assessments during a 2‐year period. METHODS: The diagnosis of the psychiatric disorders was based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM‐5), and sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI). RESULTS: In total, 159 patients with the mean age of 42.15 ± 9.89 were recruited in this study. Over 92% of the cases were also diagnosed with at least one type of psychiatric disorder. Sleep disorders (SDs, 90.57%), mood disorders (MDs, 52.83%), personality disorders (PDs, 40.25%) and anxiety disorders (ADs, 16.98%) were the most prevalent diagnoses among these patients. The logistic regression results correspondingly showed that suffering from Cluster‐B PDs was associated with a higher prevalence rate of somatic symptom disorders (SSDs), with a p‐value of 0.019 and an odds ratio (OR) of 2.7.