The duration of undiagnosed bipolar disorder: Effect on outcomes and treatment response
The duration of undiagnosed bipolar disorder: Effect on outcomes and treatment response
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DOI:
10.1016/j.jad.2014.07.025
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发表时间:
2014-10-15
影响因子:
6.6
通讯作者:
Mitchell, P. B.
中科院分区:
文献类型:
--
作者:
McCraw, Stacey;Parker, Gordon;Mitchell, P. B.
Introduction: There are commonly long delays beLvveen the onset of bipolar disorder (BP), seeking of treatment and acquiring a bipolar disorder diagnosis. Whether a longer duration of undiagnosed bipolar disorder (DUBP) leads to an inferior treatment response is unclear in the literature.Method: We conducted two studies with independent samples of BP patients who had received a first-time diagnosis of BP - first investigating whether DUBP was related to clinical and social outcomes at the time of assessment (n=173) and, second, whether response to mood stabiliser medication was affected by DUBP when assessed three months following assessment and intervention (n=64).Results: Participants' mean DUBP was 18-20 years (from the onset of mood episodes). After controlling for age, a longer DUBP was associated with employment difficulties, whereas a shorter DUBP was associated with a history of engaging in self-harm behaviours, as well as a reduced likelihood of experiencing social costs as consequence of the mood disorder. The majority of study variables were statistically unrelated Lo DUBP. In a multivariate analysis, age was the only predictor variable to make a significant contribution to the DUBP (33%). Across the 3-month intervention period, participants improved significantly on all but one outcome measure. The participants likelihood to improve, become worse or experience minimal/no change over the study period was not significantly related to the DUBP. Limitations: Self-reporting poses a risk to measurement precision. Being a naturalistic observation, no specific dose of medication was prescribed. The small sample of BP I patients provided insufficient statistical power to undertake meaningful separate analyses of the BP land BP II participants.Conclusion: Early detection and intervention remains important for helping to reduce morbidity and risks associated with untreated BR However, the variation in DUBP was mostly a function of age and did not substantially affect clinical status at assessment, or lead to an inferior response to mood stabilising medication. (C) 2014 Elsevier By, All rights reserved.