DNA methylation age acceleration is associated with ALS age of onset and survival.

Multivariate linear regression analysis detected a highly significant association between blood-based DNAm-age acceleration and ALS age of onset (adjusted p value = 2.2E-16, B = − 1.29, R 2 = 0.33, n = 249) (Supplementary methods, Fig. 1 a), suggesting that for every 5-year increase in DNAm-age acceleration there is a 6.4-year earlier onset.

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