Recruiting participants is a challenge for many health, medical and psychosocial research
projects. One tool more frequently being used to improve recruitment is the social …

Background Recruitment for clinical trials continues to be a challenge, as patient recruitment
is the single biggest cause of trial delays. Around 80% of trials fail to meet the initial …

Background Recruiting participants into clinical trials continues to be a challenge, which can
result in study delay or termination. Recent studies have used social media to enhance …

Background Internet and mobile health (mHealth) apps hold promise for expanding the
reach of evidence-based health interventions. Research in this area is rapidly expanding …

Background A recurring concern in traditional and in Web-based studies pertains to non-
representativeness due to volunteer bias. We investigated this issue in an ongoing, large …

Background: Recruiting participants for research studies can be difficult and costly. The
popularity of social media platforms (eg, Facebook) has seen corresponding growth in the …

Background Recruiting and retaining participants in randomised controlled trials (RCTs) is
challenging. Digital tools, such as social media, data mining, email or text-messaging, could …

Gay, bisexual, and other men who have sex with men (MSM) and transgender women,
particularly those who are living with HIV, are disproportionately affected by human …

Background Facebook (FB) has been widely used recently to recruit participants for adult
health research. However, little is known about its effectiveness, cost, and the characteristics …

Background Despite numerous public health campaigns to promote the human
papillomavirus (HPV) vaccine, uptake among adolescents in the US has remained below …