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ORIGINAL ARTICLE
Year : 2017  |  Volume : 4  |  Issue : 1  |  Page : 26-35

A retrospective study of late-onset bipolar disorder: A comparison with early and intermediate onset


Department of Psychiatry, Postgraduate Institute of Medical Education and Research, Chandigarh, India

Correspondence Address:
Sandeep Grover
Department of Psychiatry, Postgraduate Institute of Medical Education and Research, Chandigarh - 160 012
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2348-9995.208606

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Aim: To evaluate the sociodemographic, clinical, and treatment characteristics profile of late-onset (LO) bipolar affective disorder (BPAD) (onset ≥50 years) and compare the patients with LO BPAD with early age of onset (10–25 years) and intermediate age of onset (26–40 years) BPAD for the demographic features, illness characteristics, and treatment characteristics. Methodology: In this retrospective study, data (demographic features, clinical characteristics, and treatment characteristics) of 115 patients with LO BPAD (onset ≥50 years) were extracted and were compared with 93 patients with intermediate-onset (IO) (26–40 years) and 130 patients with early-onset (EO) (10–25 years) BPAD groups. Results: Patients with LO BPAD differ from EO and IO BPAD in having higher rates of family history of mental disorders, higher rates of comorbid psychiatric disorders (especially substance use disorders) and physical illnesses, higher rates of suicidal ideations, lower rates of suicidal attempts, higher rates of Type-II BPAD, lower prevalence of psychotic symptoms during the episodes, shorter interepisodic duration, higher use of combination of mood stabilizers and antidepressants, lower preference of lithium, higher preference for valproate, and lower use of benzodiazepines. In addition, patients with LO BPAD differed from those with EO BPAD in having higher rates of having a depressive-manic illness pattern, longer duration of depressive episodes, and lower number of manic episodes. Patients with LO BPAD differed significantly from IO BPAD in having lower number of episodes and more often use of antipsychotic monotherapy during the acute phase. Conclusions: LO BPAD differs from IO and EO BPAD on several of the clinical characteristics. Treatment preferences by the clinicians for LO BPAD also differ from EO and IO BPAD.


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