Summary: In adults receiving primary care with BMI ≥27 kg/m² and at least one cardiovascular risk factor, enrolled via electronic health record outreach, Customized Lifestyle Support (CLS) with weekly adaptive EHR messages and telephonic nurse coaching demonstrated 60% of participants losing some weight, 15% achieving clinically meaningful ≥5% weight loss, and higher engagement in daily self-weighing (43% vs 21%) compared to Basic Lifestyle Support (BLS) with cellular-connected scale and referral to community coaching programs, with no statistically significant difference in weight outcomes between groups (P=0.85).
| PICO | Description |
|---|---|
| Population | Adults receiving primary care in an urban clinic setting with BMI ≥27 kg/m² and at least one cardiovascular risk factor, enrolled pragmatically via electronic health record outreach. |
| Intervention | Customized Lifestyle Support (CLS): basic lifestyle resources plus weekly adaptive EHR messages and telephonic coaching by a nurse if algorithm-identified difficulties were detected. |
| Comparison | Basic Lifestyle Support (BLS) only: cellular-connected scale, referral to community coaching programs, and encouragement via periodic EHR messaging without adaptive support or nurse coaching. |
| Outcome | At 6 months: 60% lost some weight, 15% achieved ≥5% weight loss. No significant between-group difference (P=0.85). CLS had higher self-weighing (43% vs 21%) and lifestyle resource enrollment (52% vs 37%). |
Clinical Context
Obesity affects over 40% of American adults yet primary care struggles to deliver effective weight management. Time constraints, competing priorities, and limited behavioral health resources create implementation barriers. Digital health technologies offer potential solutions: cellular-connected scales enable remote monitoring, EHR messaging provides automated touchpoints, and telehealth coaching extends specialist reach.
This study tested a “pragmatic” approach designed for real-world primary care rather than research clinics with dedicated staff and motivated volunteers. Pragmatic trials sacrifice internal validity for external validity—showing what happens when interventions are deployed in actual practice conditions.
The COVID-19 pandemic disrupted this trial, affecting both enrollment and intervention delivery—yet this disruption itself provides insight into real-world implementation challenges.
Clinical Pearls
1. Feasibility Established, Efficacy Unclear: This was a feasibility trial, not powered to detect between-group differences. The 15% achieving ≥5% weight loss is promising but requires larger trials for confirmation.
2. Self-Weighing Engagement Doubled with Enhanced Support: The 43% vs 21% daily weighing rate suggests enhanced support increases self-monitoring engagement, a key behavioral predictor of weight loss success.
3. Pragmatic Design Reveals Real-World Challenges: EHR-based recruitment, COVID-19 disruption, and modest engagement reflect what implementing such programs in actual practice would encounter.
4. Technology Is Enabler, Not Solution: Cellular scales and EHR messaging are tools that extend reach but don’t guarantee behavior change. Human coaching elements may remain essential.
Practical Application
Connected devices and automated messaging can be implemented in standard EHR systems with existing infrastructure. However, engagement will be partial and weight loss modest for most patients without additional support.
Identify patients most likely to engage: those expressing readiness for change, with stable living situations, and access to technology. Adaptive algorithms can target coaching resources efficiently to patients showing early signs of difficulty.
Broader Evidence Context
Digital weight loss interventions have shown efficacy in research settings, with meta-analyses suggesting mean weight loss of 2-4 kg over 6-12 months. Real-world effectiveness is typically lower due to selection bias in research populations. This pragmatic trial’s results align with expectations for real-world implementation.
Study Limitations
Feasibility trial not powered to detect between-group differences. COVID-19 disruption affected enrollment and intervention delivery. Six-month follow-up doesn’t assess weight maintenance. Urban academic setting may not generalize to other primary care contexts.
Bottom Line
Hybrid health IT and telehealth-delivered weight loss intervention is feasible in primary care and may increase patient engagement in self-monitoring behaviors, though this feasibility trial did not demonstrate significant weight loss differences compared to basic support. Larger efficacy trials are needed.
Source: Ackermann RT, et al. “Hybrid Health IT and Telehealth-Delivered Behavioral Weight Loss Services for Primary Care Patients With Cardiovascular Risk Factors: Intervention Component Design and Pragmatic Randomized Feasibility Trial.” Read article.
