The impact of comorbid anxiety disorders on bipolar disorder

Abstract

Studies have suggested that comorbid anxiety disorders may have a negative impact on bipolar disorder. This study aimed to evaluate the possible effect of comorbid anxiety disorders on bipolar disorder among outpatients in Iceland by examining demographic variables, the course of illness, current quality of life, anxiety, work and social adjustment, and recovery. The sample consisted of 29 participants in two groups: bipolar disorder without an anxiety disorder (n=19) and bipolar disorder with comorbid anxiety disorders (n=10), all of whom were patients at a specialized bipolar outpatient clinic at Landspítali, The National University Hospital of Iceland. Participants completed clinical interviews using MINI, Brief QoL.BP, BRQ, GAD-7, WSAS, and medical records were also examined. The study found no significant differences in the number of hospitalizations, days spent hospitalized, suicide attempts, or the age of onset between the two groups. However, there were significant differences in scores on Brief QoL.BP, BRQ, GAD-7, and WSAS indicating that individuals with comorbid anxiety disorders experienced a lower level of quality of life, less recovery, more anxiety, and impaired level of functioning. These findings suggest the importance of addressing comorbid anxiety disorders in the treatment of bipolar disorder.Keywords: Bipolar disorder, anxiety disorders, course of illness, quality of life, social functioning, recovery.