Recruitment and retention of mothers of preschoolers and school-aged children in a social media-delivered healthy eating intervention: lessons learned from a randomized controlled trial

Table 2 Reach and user engagement during the Facebook recruitment^{a, b}

Performance criteria	n
Total reach of Facebook posts (unique users)	5089
Total impressions of Facebook posts	8974
People engaged (e.g. share, likes, comments, clicks) with the Facebook posts (unique users)	469
Total clicks on the Facebook page	639
Unique users who liked and clicked on the Facebook page	92

^aValued estimated by Facebook Audience Insights [54].
^bImpressions measure how often the ad appeared on the screen of the target audience.

ISSN: 1745-6215