Adherence
Brief GP-delivered weight loss advice (approx. 86 seconds) results in a statistically significant mean weight loss of 1.04 kg at 12 months compared to a baseline population average of ~300g, demonstrating that the intervention itself, rather than specific behavioral change techniques (BCTs), drives the outcome.
As a primary care clinician, you do not need extensive training or long consultations to help patients with obesity lose weight. Simply delivering a brief, opportunistic piece of advice (around 1.5 minutes) at the end of a routine visit is sufficient to motivate patients to take action and achieve a modest but significant weight loss (approx. 1 kg) over a year. Focus on the act of advising rather than perfecting specific behavioral techniques.
in the arm of the BWeL trial where GPs gave advice to lose weight, there was a weight loss of 1.04 kg (SD 5.50 kg) at 12 months for people with obesity (BMI of ≥30 kg/m²)... highlighting the motivational effect of even very brief advice from a GP.
Why this rating
Randomized controlled trial (BWeL) with audio-recorded interventions and objective weight measurements, though the specific BCTs were not predictive.
Source
GP delivered brief weight loss advice: associations between in-consultation behaviour change techniques and patient weight loss in recorded primary care discussions
Eleanor Ayre et al. · Health Psychology and Behavioral Medicine · 2023
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