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Miller, Christopher

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Miller

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Christopher

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Miller, Christopher
Author's Publications: search.filters.isAuthorOfPublication.d4731252-9271-4d1d-baf8-ded4e6d4020dSubject: search.filters.subject.Comorbidity

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    Posttraumatic stress disorder, depression, and health-related quality of life in patients with bipolar disorder: Review and new data from a multi-site community clinic sample

    (Elsevier BV, 2013) Bajor, Laura; Lai, Zongshan; Goodrich, David E.; Miller, Christopher; Penfold, Robert B.; Myra Kim, Hyungjin; Bauer, Mark; Kilbourne, Amy M.

    Background

    Evidence suggests that patients with bipolar disorder have an elevated risk for comorbid posttraumatic stress disorder (PTSD) compared to those without a bipolar diagnosis. Although bipolar disorder is associated with decreased health-related quality of life (HRQOL), it is unclear whether comorbid PTSD interacts to affect HRQOL.

    Method

    Baseline data from a multi-site study of patients with bipolar disorder were analyzed. Patient surveys ascertained clinical and demographic information, including physical and mental HRQOL based on the SF-12, mood symptoms (PHQ-9, Internal State Scale), and self-reported co-occurring conditions including PTSD.

    Results

    Overall (N=384), 43.5% of patients self-reported co-occurring PTSD. Patients with PTSD had lower physical and mental HRQOL scores compared to those without PTSD (mean (SD) for those with and without PTSD, respectively): Mental Component Scale score 30.51 (8.22) and 32.86 (8.35); Physical Component Scale score 35.56 (7.77) and 37.21 (7.20). After adjusting for demographic and clinical factors including mood symptoms, multivariable linear regression analyses revealed that PTSD was no longer significantly associated with physical or mental HRQOL; however, depressive symptoms were independently associated with mental HRQOL (Beta −0.63, p<0.01).

    Conclusion

    Depressive symptoms may explain the association between PTSD and mental HRQOL. Clinicians working with these patients will want to emphasize treatment of depression as important towards improving HRQOL for this group.