Predictors of relationship functioning for patients with bipolar disorder and their partners.

Previous investigations have examined family functioning, including marital functioning, as an important predictor of the course of bipolar disorder, but limited research exists identifying the factors that influence relationship functioning in patients with bipolar disorder. In the current study, 56 patients with bipolar disorder and their partners were assessed for Axis II pathology, general family functioning, and relationship distress. Patient mood symptoms and Axis II pathology variables were examined as predictors of general relationship functioning (Family Assessment Device, McMaster Clinical Rating Scale, and Dyadic Adjustment Scale) in regression models. Analyses indicated that patients' depressive symptomatology was associated with patient ratings of general family functioning and couple functioning, while patients' manic symptoms were associated with partners' ratings of the romantic relationship. Partners' total Axis II pathology, but not patients' Axis II pathology, was associated with patient and partner perception of the couple's relationship. These findings highlight the importance of mood and personality pathology to relationship functioning, and represent one of the first investigations to verify the impact of personality pathology on patients' and partners' perceptions of relationship functioning.