Association between Body Mass Index and Migraine: A Survey of Adult Population in China.

Behav Neurol · 2018 · PMC5933061 · PMID 29849812

Europe PMC DOI

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a negative trendno p-value reported

But we also found that with the increase of BMI level, the proportion of frequency migraine began to increase; meanwhile, the low-frequency migraine presented a negative trend.

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a positive trendno p-value reported

Maybe, it revealed that the frequency of headache had a positive trend with the increase of BMI.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.