Migraine Nearly Doubles Depression and Anxiety Risk in Cohort Study
Key Clinical Summary
- Individuals aged 10–50 with migraine had ~1.8-fold higher adjusted risk of subsequent depression or anxiety compared with those without migraine in a national Swedish cohort.
- In a sibling analysis adjusted for shared genetics and childhood environment, the association remained significant with a hazard ratio of 1.63.
- Small-area residential deprivation did not significantly modify the migraine–mental health risk relationship.
Patients with migraine are at 2 times the risk for depression or anxiety compared to those without migraine, according to a large nationwide Swedish cohort study published in The Journal of Headache and Pain. Using matched and sibling samples from health and population registers, researchers evaluated whether migraine is an independent risk factor for later affective disorders and whether small-area socioeconomic deprivation modifies this association.
Study Findings
The register-based cohort included 4,065,375 individuals aged 10–50 years with no recorded depression or anxiety in the preceding decade. Participants were paired with matched (n = 1,455,352) and sibling (n = 179,888) samples for analysis.
The researchers defined migraine exposure and depression or anxiety outcomes using health register diagnoses or the first prescription date when no formal diagnosis was recorded. Follow-up began 6 months after migraine identification and continued through December 31, 2023.
Incidence rates for depression or anxiety were substantially higher among those with migraine (39.2 episodes per 1,000 person-years) compared with those without (21.9 episodes per 1,000 person-years) in matched analyses. After adjusting for demographic and area factors, migraine was associated with a 78% increased hazard of depression or anxiety (adjusted hazard ratio [HR] 1.78; 95% CI: 1.75–1.81).
A sibling analysis that controlled for shared genetic and family environmental factors also found an elevated risk (HR 1.63; 95% CI: 1.58–1.68), indicating that the association persists even when accounting for these confounders. The study also tested for interaction with small-area deprivation—defined by a composite index of socioeconomic conditions—but found no statistically significant effect modification in either cohort (p = 0.123 matched; p = 0.422 sibling).
Clinical Implications
These findings highlight migraine as a significant marker for increased risk of subsequent depression and anxiety in clinical populations. For neurologists, primary care physicians, and mental health professionals, awareness of this elevated risk underscores the importance of routine mental health monitoring in patients with migraine. Diagnosing migraine should prompt clinicians to assess mood and anxiety symptoms regularly, particularly over the long term, even in younger patients. Integrated care approaches that address both headache and psychological wellbeing may mitigate the compounded burden of comorbidity, improve quality of life, and reduce disability.
The persistence of the association in sibling analyses suggests that shared familial risk factors do not fully explain the linkage, pointing toward potential direct or indirect pathophysiological connections between migraine and affective disorders. Although small-area deprivation did not significantly modify risk in this Swedish cohort, socioeconomic factors remain relevant for identifying vulnerable populations and tailoring preventive strategies. Further research in diverse settings with greater socioeconomic variability could clarify contextual influences on these relationships.
Expert Commentary
“People with migraine have a higher subsequent risk of depression or anxiety than those without migraine, and this association remained but was lower in sibling analyses after adjusting for shared genetic factors and childhood family environments,” wrote Emily White Johansson, PhD, Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden, and coauthors. “We found no evidence of a modifying role for small-area deprivation in the subsequent risk of depression or anxiety among migraine patients, although further investigation is merited.”
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