Over the lifetime of the early onset Alzheimer's study, we have recruited hundreds of participants from over 100 different families from Puerto Rico, the Dominican Republic, and the US. This study involves multiple visits over the course of several years therefore the chart below is divided by newly recruited patients, follow ups, and the total number of patients seen from January to December of that calendar year. Below you can find our recruitment stats from the most current year (updated on a monthly basis). Below the chart, recruitment stats from previous years can be found.