Assessment of Relationship Between Dietary Factors, Socioeconomic Factors, Behavioral Factors, Physical Measurement, and Risk of Migraine: A Univariable and Multivariable Mendelian Randomization Study.

Abstract

Objective: Although numerous studies have identified associations between socioeconomic, behavioral, dietary, and physical factors and migraine, the causal nature of these relationships has yet to be adequately established.

Materials and methods: We utilized 2-sample Mendelian randomization (MR) to elucidate the causal associations of 28 distinct traits for socioeconomic factors, behavioral factors, dietary factors, and physical measurement with migraine. In the univariable MR analysis, the inverse-variance weighted method served as the primary analytic approach. Robustness checks included the Cochran Q test, Egger intercept test, and leave-one-out analysis. A multivariable MR analysis framework was utilized to assess the direct causal impacts of these traits on migraine risk.

Results: The univariable MR analysis analysis revealed that genetic predispositions to higher coffee intake (Odds Ratio (OR) = 0.547; 95% CI = 0.359-0.834; P = 0.005), greater oily fish intake (OR = 0.556; 95% CI = 0.394-0.785; P = 0.001), and higher educational attainment (OR = 0.916; 95% CI = 0.884-0.949; P < 0.001) were associated with reduced migraine risk. In contrast, predispositions to higher poultry intake (OR = 4.690; 95% CI = 1.377-15.977; P = 0.013) and longer mobile phone use (OR = 1.526; 95% CI = 1.080-2.157; P = 0.017) correlated with increased risk. These associations remained consistent in the multivariable MR analysis after adjusting for stroke and particulate matter air pollution.

Conclusions: Our study robustly supports the significant causal roles of specific socioeconomic, behavioral, and dietary factors with physical measurement in the development of migraine. Notably, coffee intake, oily fish intake, and educational attainment appear protective, whereas poultry intake and extensive mobile phone use elevate risk. These insights pave the way for developing targeted preventive strategies for migraine.