OBJECTIVE: To examine medication adherence and associated factors among adolescents with bipolar disorder (BP) using both objective and subjective methods. METHOD: Participants were 21 adolescents with a primary BP diagnosis recruited from a pediatric specialty clinic. All participants were prescribed at least one psychotropic medication. Self- and parent-reported adherence were assessed monthly over 6 months. Objective data on medication adherence were gathered through an electronic weekly pillbox. Demographic and clinical factors were assessed through self, parent, and physician ratings at baseline, 3, and 6 months. RESULTS: Objective data indicate 41.5% of doses (58.6% of days) were not taken as prescribed over a mean of 3 months of follow-up. Subjective reports (patient, parent, and physician) significantly overestimated adherence as compared with objective data. Factors from multiple domains were associated with poorer adherence, including more daily doses, higher weight, dose timing (poorer on mornings/afternoons and weekends), less temporal proximity to medication management appointment, greater self-reported cognitive difficulties with adhering to treatment; the most potent predictor of missed doses was greater overall illness severity. CONCLUSIONS: Findings provide further evidence of poor medication adherence among youth with BP, and highlight the limits of subjective report of adherence. Providers should give careful attention to adherence when making decisions regarding treatment response and changes to medication regimen when working with youth with BP.
OBJECTIVE: To examine medication adherence and associated factors among adolescents with bipolar disorder (BP) using both objective and subjective methods. METHOD:Participants were 21 adolescents with a primary BP diagnosis recruited from a pediatric specialty clinic. All participants were prescribed at least one psychotropic medication. Self- and parent-reported adherence were assessed monthly over 6 months. Objective data on medication adherence were gathered through an electronic weekly pillbox. Demographic and clinical factors were assessed through self, parent, and physician ratings at baseline, 3, and 6 months. RESULTS: Objective data indicate 41.5% of doses (58.6% of days) were not taken as prescribed over a mean of 3 months of follow-up. Subjective reports (patient, parent, and physician) significantly overestimated adherence as compared with objective data. Factors from multiple domains were associated with poorer adherence, including more daily doses, higher weight, dose timing (poorer on mornings/afternoons and weekends), less temporal proximity to medication management appointment, greater self-reported cognitive difficulties with adhering to treatment; the most potent predictor of missed doses was greater overall illness severity. CONCLUSIONS: Findings provide further evidence of poor medication adherence among youth with BP, and highlight the limits of subjective report of adherence. Providers should give careful attention to adherence when making decisions regarding treatment response and changes to medication regimen when working with youth with BP.
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