Supporting Weight Management during COVID-19 (SWiM-C): twelve-month follow-up of a randomised controlled trial of a web-based, and commitment therapy (ACT)-based, guided self-help intervention
An erratum to this article was published (Int J Obes (Lond), Sep 2023 ↗)
Primary result · Weight change (baseline-adjusted)Result — go to the resultBaseline-adjusted difference −0.81 kg 95% CI −2.24 to 0.61 kgAuthors' conclusion
Whilst we were unable to conclude that the intervention had an effect on weight, SWiM-C improved eating behaviours, experiential avoidance and physical activity. Further refinement of the intervention is necessary to ensure meaningful effects on weight prior to implementation in practice.
Study context
- Population
- Adults ≥18 years with BMI ≥25 kg/m² (overweight or obesity) during the COVID-19 pandemicrandomised
- Participants
- 388 adults
- Comparison
- SWiM-C vs standard advice
- SWiM-Cn = 192
- Standard advicen = 196reference
- Primary endpoint
- Change in self-reported weight from baseline
- Follow-up
- Twelve months
Methodological detailsparallel, two-group, unblinded
- Parallel, two-group
- Unblinded
Primary result
Weight change (baseline-adjusted)
Baseline-adjusted difference
−0.81 kg
95% CI −2.24 to 0.61 kg
SWiM-Cvs Standard advice
baseline-adjusted difference −0.81 kg (95% CI −2.24 to 0.61 kg)
As reported in the abstract
Secondary outcomes
| Outcome | Difference (95% CI) | |
|---|---|---|
| Experiential avoidance (scale 10-70)Reduction with SWiM-C | −2.45 (−4.75 to −0.15) | |
| Uncontrolled eating (scale 0-100)Reduction with SWiM-C | −3.36 (−5.66 to −1.06) | |
| Emotional eating (scale 0-100)Reduction with SWiM-C | −4.14 (−7.25 to −1.02) | |
| −10−505Difference (linear scale) |
| Outcome | Difference (MET-min/week) (95% CI) | |
|---|---|---|
| Physical activityIncrease with SWiM-C | 8.96 (0.29–17.62) | |
| −1001020Difference, MET-min/week (linear scale) |
Remaining secondary outcomes (cognitive restraint, depression, anxiety, stress, wellbeing)
- No evidence of an effect on remaining outcomes
Safety
- No adverse events/side effects were reported
Original publication
Supporting Weight Management during COVID-19 (SWiM-C): twelve-month follow-up of a randomised controlled trial of a web-based, ACT-based, guided self-help intervention. Int J Obes (Lond). Published 11 November 2022. doi:10.
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