Does Brief Telephone Support Improve Engagement With a Web-Based Weight Management Intervention? Randomized Controlled Trial

Autor:	Katherine Bradbury, Laura Dennison, Susan Michie, Leanne Morrison, Elizabeth Murray, Beth Stuart, Scott Lloyd, Sarah Williams, Paul Little, Dawn Phillips, Paul Roderick, Lucy Yardley
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	Adult Male medicine.medical_specialty obesity Randomization 020205 medical informatics Diet Reducing Psychological intervention Health Informatics 02 engineering and technology Coaching law.invention 03 medical and health sciences 0302 clinical medicine Randomized controlled trial Weight loss Phone law Intervention (counseling) Weight management Weight Loss 0202 electrical engineering electronic engineering information engineering Medicine Humans 030212 general & internal medicine adherence Exercise Original Paper Internet behavioral business.industry Body Weight Middle Aged Telemedicine 3. Good health Telephone Self Care randomized controlled trial Physical therapy Patient Compliance Female Self Report medicine.symptom business
Zdroj:	Journal of Medical Internet Research
ISSN:	1438-8871 1439-4456
Popis:	Background Recent reviews suggest Web-based interventions are promising approaches for weight management but they identify difficulties with suboptimal usage. The literature suggests that offering some degree of human support to website users may boost usage and outcomes. Objective We disseminated the POWeR (“Positive Online Weight Reduction”) Web-based weight management intervention in a community setting. POWeR consisted of weekly online sessions that emphasized self-monitoring, goal-setting, and cognitive/behavioral strategies. Our primary outcome was intervention usage and we investigated whether this was enhanced by the addition of brief telephone coaching. We also explored group differences in short-term self-reported weight loss. Methods Participants were recruited using a range of methods including targeted mailouts, advertisements in the local press, notices on organizational websites, and social media. A total of 786 adults were randomized at an individual level through an online procedure to (1) POWeR only (n=264), (2) POWeR plus coaching (n=247), or (3) a waiting list control group (n=275). Those in the POWeR plus coaching arm were contacted at approximately 7 and 28 days after randomization for short coaching telephone calls aimed at promoting continued usage of the website. Website usage was tracked automatically. Weight was assessed by online self-report. Results Of the 511 participants allocated to the two intervention groups, the median number of POWeR sessions completed was just one (IQR 0-2 for POWeR only, IQR 0-3 for POWeR plus coach). Nonetheless, a substantial minority completed at least the core three sessions of POWeR: 47 participants (17.8%, 47/264) in the POWeR-only arm and 64 participants (25.9%, 64/247) in the POWeR plus coaching arm. Participants in the POWeR plus coaching group persisted with the intervention for longer and were 1.61 times more likely to complete the core three sessions than the POWeR-only group (χ2 1=4.93; OR 1.61, 95% CI 1.06-2.47; n=511). An intention-to-treat analysis showed between-group differences in weight loss (F 2,782=12.421, P
Databáze:	OpenAIRE
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