Social Activity, Cognitive Decline and Dementia Risk: A 20-year Prospective Cohort Study

Riccardo E. Marioni; Cecile Proust-Lima; Helene Amieva; Carol Brayne; Fiona E. Matthews; Jean-Francois Dartigues; Helene Jacqmin-Gadda


BMC Public Health. 2015;15(1089) 

In This Article


We confirm associations between increased social engagement and higher cognitive ability scores but not cognitive decline. We also showed that in a large, population-based cohort, there is heterogeneity with respect to cognitive change and risk of dementia over a 20-year period. However, the four measures of social activity that we considered were not associated with this heterogeneity.