Number of recruited participants by month (solid line) and cumulatively (dotted line). Letters indicate timing of major recruitment activities: CBS - CBS 60 minutes (aired twice), NP – retirement community paper (two publications), TV – retirement community TV, DM – direct mailing (three mailings), RE – recruitment event. Between January 2014 and peak 1: 6 presentations, 1 earned media (7 activities total). Between peaks 1 and 2: 16 presentations, 4 earned media (20 activities total). Between peaks 2 and 3: 19 presentations, 1 recruitment event, 1 mailing, 4 earned media (25 activities total). Between peaks 3 and 4: 2 presentations, 2 mailings, 2 earned media (6 activities total).