Direct and indirect predictors of medication adherence by adults with bipolar disorder

INTRODUCTION: Medication adherence by persons with bipolar disorder (BD) is inconsistent. This is disconcerting, as BD is treatment responsive, side-effects are few, and the impact of both hypo/manic and depressive mood episodes can be considerable (e.g., self-harm). OBJECTIVES: For this study, we computed a path model to identify both direct and indirect predictors of medication adherence. This included both clinical and psychosocial independent variables (e.g., BD symptoms, psychological well-being, alcohol misuse). METHODS: From the BADAS (Bipolar Affective Disorder and older Adults) Study, we identified a global sample of adults with the BD. Participants were recruited using microtargeted, Facebook advertising. This sample included persons living in Canada, U.S., U.K., Ireland, Australia and New Zealand (M = 55.35 years, SD = 9.65). RESULTS: Direct predictors included perceived cognitive failures and alcohol misuse. Of note, medication adherence is inversely associated with number of prescribed antipsychotic medications. Neither symptoms of depression nor hypo/mania emerged as direct predictors of medication adherence. Similarly, psychological well-being appears indirectly associated with adherence (via BD symptoms). CONCLUSIONS: Despite the wide age range of participants (22 – 73 years), age did not emerge as a predictor of adherence. Nor do cognitive failures appear significantly associated with age suggesting that both young and older adults with BD perceived cognitive loss. DISCLOSURE: No significant relationships.