An Adaptive Telephone Coaching Intervention for Patients in an Online Weight Loss Program: A Randomized Clinical Trial
Authors' conclusion
In this randomized clinical trial testing an adaptive intervention, the provision of coaching for individuals with suboptimal response improved WL and was cost-effective; further testing in clinical settings (eg, health care systems) is warranted.
Study context
- Population
- Adults aged 18 to 70 years with daily internet access and BMI 25 to 45 in an online weight loss (WL) program (4 months) plus maintenance (8 months), academic research center in the US; mean age 50.8 years, 69.8% female346 suboptimal responders
- Participants
- 437 adults
- Comparison
- Extended vs brief telephone coaching vs no coaching for suboptimal responders in an online WL program
- Extended coachingn = 148
- Brief coachingn = 143
- Controln = 146reference
- Primary endpoint
- Percent weight change and proportion achieving ≥5% WL
- Follow-up
- 4 and 12 months
Methodological detailsadaptive intervention, single-centre, Enrollment March 2019 to April 2022; data collection completed May 2023
- Adaptive intervention
- Single-centre
- Enrollment March 2019 to April 2022; data collection completed May 2023
Primary result
As reported in the abstract
Percent WL · 4 months
Extended coaching
−7.0
mean · SD 5.1% · %
Brief coaching
−6.2
mean · SD 4.7% · %
Control
−4.5
mean · SD 4.7% · %
P < 0.001
Further findings
≥5% WL · 4 months — Extended coaching vs Control · greater with extended and brief coaching vs control
P < 0.001
≥5% WL · 12 months — Extended coaching vs Control
P = 0.03
| Outcome | Extended coaching | Brief coaching | Control | P value |
|---|---|---|---|---|
| Percent WL · 12 monthsExtended coaching vs Control · mean, % | −5.5 (SD 6.7%) | −4.9 (SD 6.1%) | −3.9 (SD 7.4%) | P = 0.03 |
| Cost per additional kg of WL beyond control | $92.65 | $50.09 | — not stated in the abstract |
— not stated in the abstract
- Percent WL: significantly higher with extended coaching; not significant for brief coaching
Program engagement
- Brief and extended coaching watched more lessons and self-monitored on more days vs control
Original publication
An Adaptive Telephone Coaching Intervention for Patients in an Online Weight Loss Program: A Randomized Clinical Trial. JAMA Netw Open. Published 3 June 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →