The role of mental health and substance use disorders on the relation of migraine with self-directed violence among women in the United States

Objectives: Migraine disproportionately affects women of reproductive age, and is associated with self-directed violence (SDV) which confers substantial risk for suicides. Mental health disorders (MHD) and substance use disorders (SUD) are higher among persons with migraines. However, there's limited information on the influence of these conditions on SDV among women. We evaluated the interplay of MHD and SUD on the relation of migraine with SDV among US women.

Methods: We analyzed data from 96 million hospitalizations among women aged 15-49 years from the National Inpatient Sample (2004-2015). International Classification of Disease codes were used to identify hospitalizations for migraine and other health conditions. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (CI).

Results: From 2004 to 2015 the prevalence (per 1000 hospitalizations) of migraine increased from 17.5 to 33.5, while SDV prevalence also increased from 10.5 to 38.9. A greater proportion of women hospitalized with migraine had epilepsy, suicidal ideations, SUD and MHD than women without migraine. In models adjusted for demographic and behavioral/lifestyle factors, menstrual disorders, pregnancy, health conditions and violent assault, hospitalization with migraine was positively associated with SDV (OR = 1.15, CI: 1.12-1.18). Women with migraine and either SUD (OR = 5.17, CI: 4.46-5.97) or MHD (OR = 14.13; CI: 12.1-16.47) had elevated odds of SDV, with the odds varying by type of MHD and SUD.

Conclusions: A significant relation between hospitalization with migraine and SDV was observed especially among reproductive-age women with SUD and MHD. Clinicians should consider monitoring women with these characteristics for suicide risk.