Maternal education, a predictor of social-economic status, has been associated with several offspring health outcomes during the life course (e.g. obesity, type 2 diabetes, cognitive function...). The biological mechanisms regulating this association are yet to be understood. Possible mediation in the maternal education-offspring health outcome relationship might be played by DNA-methylation epigenetics markers. We therefore aim to investigate how epigenetics changes are associated to maternal educational attainment.