Fig. 3: Participant Count by Recruitment Strategy Across Study Duration. | npj Digital Medicine

Fig. 3: Participant Count by Recruitment Strategy Across Study Duration.

From: Representation is power: traditional, hybrid, and digital recruitment results from a non-randomized clinical trial engaging adolescents

Fig. 3

During the three-year trial recruitment phase, 483 participants were recruited through: Traditional recruitment: CRA Program 2% (n = 11), Biobank 2% (n = 11), study flyer in medical, public, or unspecified locations 16% (n = 77), study team at community events 1% (n = 5), word of mouth—including unspecified 13% (n = 61). Hybrid recruitment: Letters and text messages 23% (n = 112); Digital recruitment: Email 8% (n = 36), referral code 6% (n = 28), social media via Facebook, Instagram, Snapchat, or unspecified or friend-referred sources 9% (n = 43), virtual word of mouth 3% (n = 16), webpage—hospital, ClinicalTrials.gov, or unspecified 13.7% (n = 66). Start and stop timelines were known for 85% (n = 408) of participants. The remaining 15% (n = 75) of participants were recruited through a method with an undeterminable timeline: Selection of multiple recruitment methods (n = 3), unspecified social media platform (n = 12), unspecified website (n = 35), unspecified study flyer location (n = 11), unspecified recruitment method (n = 14).

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