Study Design, Settings, and Participants
weight loss, overweight or obesity
RECRUITMENT
This study was a 6-month single-arm trial evaluating the effectiveness of a commercially available WW PersonalPoints weight management and wellness program on percentage weight loss at 3 and 6 months. We recruited adults with overweight or obesity who were interested in losing weight by posting recruitment advertisements on Facebook, Instagram, Twitter, Reddit, Craigslist, and Research Match, which connects volunteers to research studies throughout the United States [Participant screening involved an initial web-based survey, followed by a telephone interview. Eligible participants then completed a web-based baseline survey. Subsequently, they were mailed a WW Conair Bluetooth Scale, and they completed an onboarding process, which included emailed instructions on how to set up the app and Bluetooth scale, including an option to schedule a call with study staff to assist with setup. Study staff checked that all scales were set up before the program commenced. Participants then took part in the 6-month WW PersonalPoints program. Data collection occurred at 3 and 6 months, which involved a web-based survey and a weigh-in on the scale. Participants were compensated with Amazon e-gift cards at baseline (US $20), 3 months (US $50), and 6 months (US $50) and were allowed to keep the Bluetooth scale after the study. The study period was from April 5, 2021 to September 19, 2021. This trial is registered at ClinicalTrials.gov (NCT04302389).