To examine risk factors in the year before suicide in a national sample of United States veterans with multiple sclerosis (MS), as well as means of suicide and receipt of mental health services prior to death.
Case control study. Individuals in the Veterans Affairs MS National Data Repository were linked to the National Death Index Plus to obtain death records, including specific causes of death. Participants were veterans with MS who died by suicide and randomly selected nonsuicide MS controls (5 per participant) who were alive at the time of the index suicide. Mental health disorders and medical comorbidities were identified in the year before death for suicides and during the identical time period for controls.
Veterans Health Administration.
Veterans (N=426) who received treatment for MS in the United States Veterans Health Administration between 1999 and 2011. There were 71 deaths by suicide and 355 randomly selected controls.
Main Outcome Measure
Results from the adjusted multivariable model suggest that the following factors were associated with an increased risk for suicide: male sex (odds ratio [OR], 3.60; 95% confidence interval [CI], 1.35-9.42), depression (OR, 1.82; 95% CI, 1.03-3.23), and alcohol use disorder (OR, 3.10; 95% CI, 1.38-6.96). Half (50.7%) had a mental health appointment in the year before suicide. The primary means of suicide was by firearm (62.0%).
Routine assessment of suicide risk in individuals with MS is warranted, particularly for those with recent history of depression or alcohol use disorder.
List of abbreviations:CI (confidence interval), ICD-9 (International Classification of Diseases, Ninth Revision), MS (multiple sclerosis), OR (odds ratio), PTSD (posttraumatic stress disorder), VHA (Veterans Health Administration), VA (Veterans Affairs)
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Published online: April 20, 2020
Supported by the VA MS Center of Excellence West. The views expressed are those of the authors and do not necessarily represent the views of the Department of Veterans Affairs.
Support for this research was provided by the Veterans Administration Multiple Sclerosis Center of Excellence West.
Published by Elsevier Inc. on behalf of the American Congress of Rehabilitation Medicine