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Effectiveness and Costs of Participant Recruitment Strategies to a Web-Based Population Cohort: Observational Study

Effectiveness and Costs of Participant Recruitment Strategies to a Web-Based Population Cohort: Observational Study

On January 25, 2023, following the success of the soft launch, wider recruitment was launched with a media campaign composed of traditional media (TV news, radio, and newspaper) and social media (Twitter, Facebook, and Instagram) strategies. A variety of media coverage, including online news articles [30-33] and TV and radio news slots, was arranged for the launch date.

Hannah Milbourn, Archie Campbell, Fiona Clark, Elly Darrah, Robin Flaig, Liz Kirby, Daniel L McCartney, Isla Mitchell, Sarah Robertson, Anne Richmond, Rosie Tatham, Zhuoni Xiao, Kerim McAteer, Caroline Hayward, Riccardo E Marioni, Andrew M McIntosh, David J Porteous, Heather C Whalley, Cathie L M Sudlow

J Med Internet Res 2025;27:e75116


Race and Ethnicity in Facebook Images and Text: Thematic Analysis

Race and Ethnicity in Facebook Images and Text: Thematic Analysis

A total of 68% of adults in the United States reported that they have used Facebook at some point, with the racial and ethnic breakdown of users being 69% White, 67% Asian, 66% Hispanic, and 64% Black [1]. Facebook activity varies by race, with racially minoritized groups practicing more content creation and engagement related to race and ethnicity compared to White users and engaging more in the explicit self-presentation of racial and ethnic identities as salient [2-5].

Shaniece Criss, Sarah M Gonzales, Heran Mane, Katrina Makres, Dalmondeh D Nayreau, Vaishnavi Bharadwaj, Hannah G Kim, Thu T Nguyen

JMIR Form Res 2025;9:e62713


Leveraging Canadian Health Care Worker Volunteers to Address COVID-19 Vaccine Misinformation on Facebook: Qualitative Program Evaluation Study

Leveraging Canadian Health Care Worker Volunteers to Address COVID-19 Vaccine Misinformation on Facebook: Qualitative Program Evaluation Study

The Informed Choice Project was initiated to combat misinformation by having volunteers address vaccine-hesitant comments on the social media platform, Facebook. The goal of the Informed Choice Project was to directly address vaccine hesitancy sentiment (eg, comments on Facebook posts) by empowering health care professionals to engage with vaccine-hesitant individuals and counteract the spread of vaccine misinformation through tailored messaging.

Caitlin Ford, Hinna Hasan, Madison Fullerton, Janette Wong, Margaret Pateman, Hao Ming Chen, Theresa Tang, Jia Hu, Kirsten Cornelson

J Med Internet Res 2025;27:e65361


Boosting Blood Donations Through Facebook Engagement: Randomized Controlled Field Trial

Boosting Blood Donations Through Facebook Engagement: Randomized Controlled Field Trial

Because of the persuasive nature of the blood bank’s Facebook posts, we hypothesize that exposure to these posts will lead to the following: Hypothesis 4. New and current blood bank Facebook followers will be more likely to show up for their first blood donation (both the NDE and the regular first donation) compared with nonfollowers. Hypothesis 5. New and current blood bank Facebook followers will have donated more frequently compared with nonfollowers after 1 year.

Steven Ramondt, Peter Kerkhof, Eva-Maria Merz

J Med Internet Res 2025;27:e64740


Investigating Social Network Peer Effects on HIV Care Engagement Using a Fuzzy-Like Matching Approach: Cross-Sectional Secondary Analysis of the N2 Cohort Study

Investigating Social Network Peer Effects on HIV Care Engagement Using a Fuzzy-Like Matching Approach: Cross-Sectional Secondary Analysis of the N2 Cohort Study

We downloaded participants’ phone contact information and Facebook network information. We attempted the download of phone contacts and Facebook friends one time, and if the download was not successful then we considered that participants’ data to be missing at random. We developed and tested a fuzzy matching algorithm (ie, deterministic linking algorithm) with a set of identifiers that provided a match result across confidant, sexual, phone contact, and Facebook networks.

Cho-Hee Shrader, Dustin T Duncan, Redd Driver, Juan G Arroyo-Flores, Makella S Coudray, Raymond Moody, Yen-Tyng Chen, Britt Skaathun, Lindsay Young, Natascha del Vecchio, Kayo Fujimoto, Justin R Knox, Mariano Kanamori, John A Schneider

JMIR Public Health Surveill 2025;11:e64497


Using Social Media to Recruit a Diverse Sample of Participants for a Mobile Health (mHealth) Intervention to Increase Physical Activity: Exploratory Study

Using Social Media to Recruit a Diverse Sample of Participants for a Mobile Health (mHealth) Intervention to Increase Physical Activity: Exploratory Study

Although we created the copy for 66 Facebook ads based on our 18 personas and general wording around health conditions or well-being, given budget constraints, we chose a subset of 7 ads for posting on Facebook (Multimedia Appendix 1).

Laura Pathak, Rosa Hernandez-Ramos, Karina Rosales, Jose Miramontes-Gomez, Faviola Garcia, Vivian Yip, Suchitra Sudarshan, Anupama Gunshekar Cemballi, Courtney Lyles, Adrian Aguilera

JMIR Mhealth Uhealth 2025;13:e56329


Popular Treatments of Psoriasis on Social Media: Google Trends Analysis

Popular Treatments of Psoriasis on Social Media: Google Trends Analysis

Notably, two widely used resources in the psoriasis community are the “Psoriasis” group on Facebook and “r/Psoriasis” on Reddit, which collectively have over 110,000 users worldwide. We aimed to analyze the most frequently mentioned treatments on these forums while also exploring how interest has evolved over time. By comparing patient discussions with search trends, this research provides valuable insights into treatment preferences and shifts in public awareness.

Derek Nguyen, Jennifer Javaheri, Ruth Sanchez, Vy Han

JMIR Dermatol 2025;8:e70067


Consumer Engagement With Risk Information on Prescription Drug Social Media Pages: Findings From In-Depth Interviews

Consumer Engagement With Risk Information on Prescription Drug Social Media Pages: Findings From In-Depth Interviews

For social media platform, we segmented participants to review stimuli on either Facebook or Instagram. For age, participants in the Facebook segment were further segmented into either “adults” (18-61 years of age) or “older adults” (62 years of age or older). Participants in the Instagram segment were further segmented into either “younger adults” (18-24 years of age) or “adults” (25 years of age or older).

Jacqueline B Amoozegar, Peyton Williams, Kristen C Giombi, Courtney Richardson, Ella Shenkar, Rebecca L Watkins, Amie C O'Donoghue, Helen W Sullivan

J Med Internet Res 2025;27:e67361


Recruiting Young People for Digital Mental Health Research: Lessons From an AI-Driven Adaptive Trial

Recruiting Young People for Digital Mental Health Research: Lessons From an AI-Driven Adaptive Trial

Morgan et al [6] used a range of internet-based methods to recruit for the Mood Memos depression prevention study, including Facebook, emails, search engine advertisements, and forum posts, and reported that advertising on Google was more cost-effective than Facebook advertising (Aus $12 [US $7.46] per recruited participant vs Aus $19.89 [US $12.37] per recruited participant) in signing up participants.

Wu Yi Zheng, Artur Shvetcov, Aimy Slade, Zoe Jenkins, Leonard Hoon, Alexis Whitton, Rena Logothetis, Smrithi Ravindra, Stefanus Kurniawan, Sunil Gupta, Kit Huckvale, Eileen Stech, Akash Agarwal, Joost Funke Kupper, Stuart Cameron, Jodie Rosenberg, Nicholas Manoglou, Manisha Senadeera, Svetha Venkatesh, Kon Mouzakis, Rajesh Vasa, Helen Christensen, Jill M Newby

J Med Internet Res 2025;27:e60413


Concerns Over Vuse e-Cigarette Digital Marketing and Implications for Public Health Regulation: Content Analysis

Concerns Over Vuse e-Cigarette Digital Marketing and Implications for Public Health Regulation: Content Analysis

We conducted a content analysis of Instagram and Facebook posts for all Vuse products over a 28-month period (October 2019 to February 2022), including both after the Vuse PMTA was submitted and before and after Vuse Solo was authorized, to address the following two questions: (1) what are the specific Vuse brands being marketed on official social media channels over this time period? and (2) do posts about Vuse products on Facebook and Instagram contain potentially youth-appealing themes?

Eileen Han, Lauren K Lempert, Francesca Vescia, Bonnie Halpern-Felsher

JMIR Form Res 2024;8:e54661