Pagoto 2016.

Study name	Engaging Moms on teen indoor tanning through social media: protocol of a randomized controlled trial
Methods	RCT
Participants	Mothers who live in Tennessee, have a daughter between the ages of 14 to 17, can read English and have a Facebook account or are willing to create one. Teen daughters will be enrolled in the study as well.
Interventions	Intervention: participants will have access to a private Facebook group name Health Chat with health messages (25% on preventing indoor tanning and 75% are on other health topics (e.g. nutrition, physical activity, etc). Posts will occur twice daily for 12 months. Control: participants will have access to a private Facebook group with health messages. These messages will not include any content about indoor tanning (25% on preventing prescription drug abuse and 75% on the same health topics as the intervention condition).
Outcomes	Main: mothers’ permissiveness for daughters to tan indoors, mothers' indoor tanning prevalence, daughters' indoor tanning prevalence, mothers' support for stricter bans on indoor tanning by minors. Other: overall health status, number of servings of fruits and of vegetables, number of times sugar sweetened drinks, body mass index, physical activity, alcoholic beverage intake, smoking behavior, mental health, human papillomavirus (HPV) vaccination status, abuse of prescription drugs, mothers’ engagement, maternal communication, mother‐daughter relationship quality, information sharing.
Starting date	Recruitment began in September 2016.
Contact information	Sherry L Pagoto, PhD Phone: 1 508 856 2092 Email: Sherry.Pagoto@umassmed.edu
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