Randomized trial comparing group size of periodic in-person sessions in a remotely delivered weight loss intervention
| Autor: | Molly Diamond, Deborah F. Tate, Carmen D. Samuel-Hodge, Karen E. Hatley, Carmina G. Valle, Melissa M. Crane, Brooke T. Nezami, Kristen Polzien |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_specialty Large group Cost-Benefit Analysis Medicine (miscellaneous) 030209 endocrinology & metabolism Physical Therapy Sports Therapy and Rehabilitation Clinical nutrition law.invention 03 medical and health sciences Young Adult 0302 clinical medicine Randomized controlled trial Weight loss law Behavior Therapy Intervention (counseling) Weight Loss Medicine Humans 030212 general & internal medicine lcsh:RC620-627 Internet Nutrition and Dietetics business.industry Group (mathematics) lcsh:Public aspects of medicine Research Body Weight Attendance lcsh:RA1-1270 Weight control Middle Aged Behavioral weight loss Hybrid internet plus in-person groups Weight Reduction Programs lcsh:Nutritional diseases. Deficiency diseases Physical therapy Female medicine.symptom business |
| Zdroj: | The International Journal of Behavioral Nutrition and Physical Activity International Journal of Behavioral Nutrition and Physical Activity, Vol 14, Iss 1, Pp 1-11 (2017) |
| ISSN: | 1479-5868 |
| Popis: | Few randomized studies have examined differential effects of group size in behavioral weight control, especially in hybrid programs that include Internet treatment approaches. Randomized controlled trial (n = 195) comparing a 4 month hybrid internet weight loss program coupled with monthly face to face groups of 100 persons (Large Group, LG; 1 group) or to the same approach with monthly groups of 20 persons (Small Group, SG; 4 groups). Repeated-measures mixed-model analysis with age and race as covariates were used to estimate primary (weight) and secondary outcomes, and to test group differences in change over time. The sample was 46.3 years old ±10.4, 90.3% female, and 51.9% non-white, with BMI 37.9 ± 8.4 kg/m2. Participants in the LG were more likely to return for the 4-month assessment visit than those in the SG (p = 0.04). Participants randomized to both the LG and SG conditions experienced significant WL over time (no between group difference: −4.1 kg and −3.7 kg, respectively) and weight loss was positively associated with attendance at monthly meetings and logins to the website. Satisfaction with the program was high and similar in both groups (94.4% reported that they were “satisfied” or “very satisfied”). Using a hybrid approach of in-person and online weight loss interventions may be an effective way to reach larger and more diverse populations. Delivering the face to face component of the intervention in groups larger than those traditionally delivered (20–25 people) could increase the cost-effectiveness of group-based behavioral weight loss interventions. NCT01615471 . Registered June 6, 2012. Registered retrospectively. |
| Databáze: | OpenAIRE |
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