- A large-scale study from Canada suggests that people with MS have increased rates of anxiety, bipolar disorder, depression, and schizophrenia compared to people without MS.
- Among people with MS, women were more likely than men to develop depression, anxiety disorder, and bipolar disorder, while men were more likely than women to develop schizophrenia. Although women with MS were more likely to develop depression than men, men developed depression at a much higher rate compared to men without MS.
- This study provides new information about the risks of psychiatric disorders in people with MS. Recognizing and addressing issues related to mental and emotional health can greatly improve quality of life for individuals and families.
- The National MS Society is focusing a light on psychosocial issues and emotional health in MS as part of its commitment to drive research and programs in wellness.
- The team (Ruth Ann Marrie, MD, PhD) published their results in Neurology (2015;85:1–8).
Details
Background: In scientific terms, having two chronic medical conditions at once is called “comorbidity.” There is growing recognition that comorbidities may complicate the diagnosis of MS and also influence disease progression, as well as an individual’s wellness and quality of life. It has long been known that depression and bipolar disorder are more common among people with MS than in the general population. In a recent study from Dr. Marrie and others, psychiatric disorders (depression and anxiety) were among the five most prevalent disorders occurring alongside MS. The current study specifically looks at psychiatric comorbidities in people with MS. The Study: The team identified 44,452 persons with MS and 220,849 controls without the disease in administrative medical data from four Canadian provinces. They examined medical records to determine the incidence (new cases) and prevalence (all existing cases) of depression, anxiety, bipolar disorder, and schizophrenia from 1995 to 2005 among these groups. The results show that the incidence and prevalence of anxiety, bipolar disorder, depression, and schizophrenia were all higher in people with MS than in people without MS in the control population. Among people with MS, women were more likely than men to develop depression, anxiety disorder, and bipolar disorder, while men were more likely than women to develop schizophrenia. Although women with MS were more likely to develop depression than men, men developed depression at a much higher rate compared to men without MS.
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