BackgroundPrenatal care provides pregnant women with repeated opportunities for prevention, screening and diagnosis that have no current extension to future fathers. It also contributes to women’s general better access to health. The goal of PARTAGE study was to evaluate the level and determinants of adherence to a prenatal prevention consultation dedicated to men.MethodsBetween January 2021 and April 2022, we conducted a monocentric interventional study in Montreuil hospital. We assessed the acceptance of a prenatal prevention consultation newly offered to every future father, through their pregnant partner’s prior consent to provide their contact details.ResultsThree thousand thirty-eight women provided contact information used to reach the fathers; effective contact was established with 2,516 men, of whom 1,333 (53%) came for prenatal prevention consultation. Immigrant men were more likely to come than French-born men (56% versus 49%, p < 0·001), and the more they faced social hardship, the more likely they were to accept the offer. In multivariate analysis, men born in Subsaharan Africa and Asia were twice as likely to attend the consultation as those born in Europe or North America.ConclusionAcceptance of this new offer was high. Moreover, this consultation was perceived by vulnerable immigrant men as an opportunity to integrate a healthcare system they would have otherwise remained deprived of.Trial registrationRegistry: ClinicalTrials.gov, US National Library of Medicine https://classic.clinicaltrials.gov/ct2/show/NCT05085717Clinical Trial number: NCT05085717.Date of registration: 20/10/2021.