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. 2020 Oct 26;22(10):e22810. doi: 10.2196/22810

Table 3.

Social media recruitment and enrollment rates by study type.

Study type Studies reporting recruitment rate, n Range of participants recruited from social media, % Studies reporting enrollment rate, n Range of participants enrolled from social media, %
Intervention purpose




Treatment 10 0-80 14 0-86

Prevention 10 1-74 14 0-62
Disease or condition type




Lifestyle-related 6 1-74 13 0-53

Neurological 4 23-80 5 18-86

OB/GYNa 4 0-28 2 8-16

HIV 2 31-66 3 23-62

Others 4 1-6 5 0-20
Mode of intervention




In-person 14 0-80 14 0-65

Online 4 15-79 10 0-86

Both 2 2-6 4 2-20
Participant age group




Adults (18+ years) 15 0-80 23 0-86

Older adults/seniors 5 1-72 4 0-33

Adolescents 0 b 1 7

aOB/GYN: obstetrics/gynecology.

bNot available (not reported by original study).