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Primary outcomes from Partner2Lose: A randomized controlled trial to evaluate partner involvement on long-term weight
Corrine Voils1, Ryan Shaw2, Kara Gavin3
1University of Wisconsin-Madison School of Medicine & Public Health.
Research Square
|April 1, 2024
Summary
Partner involvement in weight loss programs did not significantly improve long-term weight loss outcomes compared to individual efforts. This study found similar results for both partner-assisted and participant-only interventions in weight management.
Area of Science:
- Obesity research
- Behavioral science
- Public health
Background:
- Observational studies suggest partner support aids weight loss, but randomized trials yield mixed results.
- The effectiveness of teaching communication skills to couples for improving participant weight loss remains unclear.
Approach:
- A community-based randomized trial compared partner-assisted versus participant-only weight management programs.
- Interventions included an evidence-based program, with partners attending sessions and receiving communication skills training in the assisted arm.
- Primary outcome was participant weight at 24 months; secondary outcomes included caloric intake and daily steps.
Key Points:
- No significant difference in 24-month weight loss between partner-assisted (2.66 kg) and participant-only (2.89 kg) arms.
- Similar outcomes were observed for caloric intake and daily steps between the two groups.
- Adverse event rates were comparable across both intervention arms.
Conclusions:
- Partner-assisted weight management interventions demonstrated similar efficacy to individual programs for index participants.
- Involving partners and teaching communication skills did not enhance long-term weight loss outcomes in this study.
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