Genetic evidence for causal association between migraine and dementia: a mendelian randomization study.

The sensitivity analysis showed a slightly significant result in the pleiotropy test (MR-Egger intercept test, P = 0.047); however, the results of the heterogeneity test (Cochran’s Q, P = 0.604) and MR PRESSO Global test for horizontal pleiotropy ( P = 0.615) were not statistically significant (Table 3 ).

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