Body mass index and cognitive decline among community-living older adults: the modifying effect of physical activity.

"Declarations Ethics approval and consent to participateThe current study was reviewed and approved by the ethics institutional committee of the CIUSSS Estrie - Centre Hospitalier Universitaire de Sherbrooke (#2019–2856). All participants gave their written informed consent to participate in the study as to access and merge their health administrative data. All procedures have been performed in accordance with the ethical standards of the institutional committee as with the Declaration of Helsinki for experiments involving humans. Consent for publicationNot applicable. Competing interestsThe authors declare no conflicts of interest. Competing interests The authors declare no conflicts of interest."

"Funding The present study was funded by a Canadian Institutes of Health Research personalized health catalyst grant (CIHR #201706). The funder had no involvement in the study design, data collection, analyses and interpretation, nor in the writing of the manuscript and the decision to submit it for publication."