Invited commentary: recruiting for epidemiologic studies using social media

Area of Science:

• Epidemiology
• Public Health
• Social Sciences

Background:

• Social media platforms offer potential for expanding the reach of epidemiologic studies.
• Recruitment via social media can be more cost-effective and engage hard-to-reach populations like young adults.
• Current social media recruitment strategies do not yet match the standards of probability-based sampling.

Purpose of the Study:

• To evaluate the cost-effectiveness of social media-based recruitment in a large cohort study.
• To assess the representativeness of a cohort recruited using social media methods.
• To discuss implications for future social media recruitment strategies in epidemiology.

Main Methods:

• The study examined social media advertisements and promotion for recruitment.
• Cost-effectiveness was analyzed in the context of the Contraceptive Use, Pregnancy Intention, and Decisions (CUPID) Study.
• The representativeness of the recruited cohort was approximated.

Main Results:

• Social media recruitment demonstrated potential for cost-effectiveness and broad reach.
• Challenges remain in achieving representativeness comparable to traditional sampling methods.
• Data limitations regarding social media users and sampling frames hinder probability-based strategies.

Conclusions:

• Social media presents a promising, cost-effective tool for expanding epidemiologic study recruitment.
• Further research is needed to address limitations in sampling frames and user data for probability-based social media recruitment.
• Careful consideration of implementation, data accuracy, and ethical concerns is crucial for social media-based recruitment strategies.