Last updated August 21, 2026
Key finding
Weight and BMI were lower in the intervention group by -2.64 kg (SE 0.71; P <.001).
This study evaluated the long-term weight loss and glycemic efficacy of a mobile-delivered diabetes prevention program compared to usual medical care. The intervention group showed significant weight and BMI reductions.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Long-Term (1–5 y)
Risk of bias
Some Concerns
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Plain-language summary
A plain-language read of the study’s main message and where it applies.
Study focus
This study evaluated the long-term weight loss and glycemic efficacy of a mobile-delivered diabetes prevention program compared to usual medical care. The intervention group showed significant weight and BMI reductions.
This study highlights the potential of mobile health interventions in promoting weight loss among individuals at risk for diabetes. Effective weight management is crucial for preventing type 2 diabetes and improving overall health outcomes. The findings suggest that mobile programs can be a viable alternative to traditional care methods.
The study may have limited generalizability due to specific population characteristics. Effectiveness of the intervention on glycemic control remains unclear. Sample size and duration may limit the robustness of long-term conclusions.
Published in
Publication details and source links for this paper.
Gunther E, Daiana B, Yu-Hsuan L, et al. Long-Term Weight Loss and Glycemic Efficacy of a Mobile-Delivered Diabetes Prevention Program: A Randomized Controlled Trial. JMIR mHealth and uHealth. 2020;8(7):e17842. doi:10.2196/17842
The intervention group lost an average of 2.64 kg (P <.001).
The intervention group had a BMI reduction of 0.99 kg/m² (P =.001).
The control group lost only 0.15% of weight at 6 months (P =.85).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Mobile-delivered, coach-guided diabetes prevention program (Noom) and BMI, Body weight, HbA1c.
This study contributes evidence to
Primary intervention
Mobile-delivered, coach-guided diabetes prevention program (Noom)
Primary outcomes
Evidence topics
Primary intervention
Primary outcomes
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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Evidence network role
This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.
2
Related topics
3
Evidence pairs
979
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Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
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Primary evidence
Evidence topic
matched_outcome
Related evidence
Evidence topic
Save evidence
Core evidence
The primary outcomes reported in this study.
Mobile-delivered, coach-guided diabetes prevention program (Noom) → BMI
Mobile-delivered, coach-guided diabetes prevention program (Noom) → BMI
Mobile-delivered, coach-guided diabetes prevention program (Noom) → Body weight
Mobile-delivered, coach-guided diabetes prevention program (Noom) → Body weight
Mobile-delivered, coach-guided diabetes prevention program (Noom) → HbA1c
Mobile-delivered, coach-guided diabetes prevention program (Noom) → HbA1c
Evidence Library
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Usual care and HbA1c, Usual care and Body Weight.
This study contributes to the evidence on the following intervention-outcome relationships.
Behavioral & Lifestyle
Behavioral & Lifestyle
Curated evidence collections and hubs this study is part of.
All studies measuring HbA1c
Measures HbA1c as a key outcome.
All studies on Usual care
Contributes to Usual care evidence base.
All studies measuring Body Weight
Measures Body Weight as a key outcome.
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14 results
5 results
14 results
14 results
5 results
Generated from the study's connected evidence using Evidence Intelligence™.
Mobile-delivered, coach-guided diabetes prevention program (Noom) appears to affect BMI.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
BMI
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Mobile-delivered, coach-guided diabetes prevention program (Noom) appears to affect body weight.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Body weight
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Current evidence does not show a clear benefit of Mobile-delivered, coach-guided diabetes prevention program (Noom) for HbA1c.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
HbA1c
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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