PrediabetesPreventionBehavioral Intervention
Research Summary
Analyzed using Evidence Intelligence™

Engagement in a prediabetes education programme is linked to lower type 2 diabetes risk

Last updated June 15, 2026

Key finding

HR 0.12 [95% CI 0.05-0.28] for retainers vs standard care; ITT HR 0.74 [95% CI 0.48-1.14], p=0.18

This study looked at whether attending more sessions of a diabetes prevention programme helped lower type 2 diabetes risk. People who went to all sessions had an 88% lower risk of developing diabetes compared to those receiving standard care. However, fewer than 1 in 3 people attended all sessions.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

Secondary analysis of a cluster-randomised controlled trial

Follow-up

Long-Term (1–5 y)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

A plain-language read of the study’s main message and where it applies.

Study focus

This study looked at whether attending more sessions of a diabetes prevention programme helped lower type 2 diabetes risk. People who went to all sessions had an 88% lower risk of developing diabetes compared to those receiving standard care. However, fewer than 1 in 3 people attended all sessions.

Clinical relevance

Diabetes prevention programmes are a global priority, but real-world programmes often have limited resources compared to the intensive programmes tested in landmark trials. This study shows that even a relatively low-intensity group programme can produce large benefits for people who fully participate. The challenge is finding ways to reach and support people who are less likely to engage, since these individuals also tend to have higher risk profiles.

Keep in mind

Secondary analysis: ITT primary analysis was non-significant Selection bias: people who engaged more had healthier baseline characteristics Low retention: only 29% completed all programme sessions Post-hoc attendance grouping not randomised

Main Effects

↓ Type 2 diabetes risk with full programme attendance (HR 0.12, 95% CI 0.05–0.28)

↓ Weight, HbA1c, and waist circumference in completers vs standard care

↑ Quality of life and daily step count in programme completers

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Lifestyle intervention for prediabetes and 2-hour plasma glucose, Anxiety score, Body weight, and 6 more.

Primary intervention

Lifestyle intervention for prediabetes

Primary outcomes

  • 2-hour plasma glucose
  • Anxiety score
  • Body weight

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

9
Evidence pairs
9
Relationships
5
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

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.

Moderate contributionModerate confidenceNetwork score: 68

5

Related topics

9

Evidence pairs

927

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 9 evidence relationships
  • Includes primary outcome data
  • Linked to 5 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Add related evidence to your Evidence Tracker

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Primary evidence

Evidence topic

Prediabetes

matched_intervention_and_outcome

Related evidence

Evidence topic

Glycemic Control

Save evidence

Core evidence

Study findings

The primary outcomes reported in this study.

2-hour plasma glucose

Lifestyle intervention for prediabetes → 2-hour plasma glucose

Lifestyle intervention for prediabetes → 2-hour plasma glucose

Evidence Intelligence™
EvidenceScore™
Strong
Score 79 · Based on 3 studies
ImpactScore™
56
Slightly Positive
ConsistencyScore™
67
generally_consistent
Supporting studies: Based on 3 studies
Add to Evidence Tracker

Anxiety score

Lifestyle intervention for prediabetes → Anxiety score

Lifestyle intervention for prediabetes → Anxiety score

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Body weight

Lifestyle intervention for prediabetes → Body weight

Lifestyle intervention for prediabetes → Body weight

Evidence Intelligence™
EvidenceScore™
83
Strong
ImpactScore™
65
Slightly Positive
ConsistencyScore™
86
consistent
Supporting studies: Based on 7 studies
Add to Evidence Tracker

Daily step count

Lifestyle intervention for prediabetes → Daily step count

Lifestyle intervention for prediabetes → Daily step count

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Fasting blood sugar (FBS)

Lifestyle intervention for prediabetes → Fasting blood sugar (FBS)

Lifestyle intervention for prediabetes → Fasting blood sugar (FBS)

Evidence Intelligence™
EvidenceScore™
76
Strong
ImpactScore™
64
Slightly Positive
ConsistencyScore™
67
generally_consistent
Supporting studies: Based on 4 studies
Add to Evidence Tracker

HbA1c

Lifestyle intervention for prediabetes → HbA1c

Lifestyle intervention for prediabetes → HbA1c

Evidence Intelligence™
EvidenceScore™
83
Strong
ImpactScore™
85
Very Positive
ConsistencyScore™
86
consistent
Supporting studies: Based on 7 studies
Add to Evidence Tracker

Quality of life

Lifestyle intervention for prediabetes → Quality of life

Lifestyle intervention for prediabetes → Quality of life

Evidence Intelligence™
EvidenceScore™
Moderate
Score 69 · Based on 2 studies
ImpactScore™
73
Positive
ConsistencyScore™
100
consistent
Supporting studies: Based on 2 studies
Add to Evidence Tracker

Type 2 diabetes incidence

Lifestyle intervention for prediabetes → Type 2 diabetes incidence

Lifestyle intervention for prediabetes → Type 2 diabetes incidence

Evidence Intelligence™
EvidenceScore™
Strong
Score 79 · Based on 3 studies
ImpactScore™
67
Slightly Positive
ConsistencyScore™
67
generally_consistent
Supporting studies: Based on 3 studies
Add to Evidence Tracker

Waist circumference

Lifestyle intervention for prediabetes → Waist circumference

Lifestyle intervention for prediabetes → Waist circumference

Evidence Intelligence™
EvidenceScore™
76
Strong
ImpactScore™
64
Slightly Positive
ConsistencyScore™
75
consistent
Supporting studies: Based on 4 studies
Add to Evidence Tracker

Evidence Library

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keep in mind

Keep in Mind

  • Secondary analysis: ITT primary analysis was non-significant Selection bias: people who engaged more had healthier baseline characteristics Low retention: only 29% completed all programme sessions Post-hoc attendance grouping not randomised
between the lines

Between the Lines

  • Secondary analysis: ITT primary analysis was non-significant Selection bias: people who engaged more had healthier baseline characteristics Low retention: only 29% completed all programme sessions Post-hoc attendance grouping not randomised

Evidence Library

Build your evidence library

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Lifestyle intervention for prediabetes and HbA1c, Lifestyle intervention for prediabetes and Body Weight.

Related evidence relationships

Explore in Evidence Explorer

This study contributes to the evidence on the following intervention-outcome relationships.

Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

Does Lifestyle intervention for prediabetes improve HbA1c?

Strong Evidence

Lifestyle intervention for prediabetes appears to improve HbA1c.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    HbA1c

    EvidenceScore™ Strong | EvidenceScore™ 83.2 | strong positive | ConsistencyScore™ Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Lifestyle intervention for prediabetes affect body weight?

Strong Evidence

Lifestyle intervention for prediabetes may improve Body weight.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    Body weight

    EvidenceScore™ Strong | EvidenceScore™ 82.8 | weak positive | ConsistencyScore™ Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Lifestyle intervention for prediabetes improve 2-hour plasma glucose?

Strong Evidence

Lifestyle intervention for prediabetes may improve 2-hour plasma glucose.

ConsistencyScore™: Results are generally consistent across studies.

Ranked evidence signals

  1. 1

    2-hour plasma glucose

    EvidenceScore™ Strong | EvidenceScore™ 79.0 | weak positive | ConsistencyScore™ Generally Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Lifestyle intervention for prediabetes improve type 2 diabetes incidence?

Strong Evidence

Lifestyle intervention for prediabetes may improve Type 2 diabetes incidence.

ConsistencyScore™: Results are generally consistent across studies.

Ranked evidence signals

  1. 1

    Type 2 diabetes incidence

    EvidenceScore™ Strong | EvidenceScore™ 79.0 | weak positive | ConsistencyScore™ Generally Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
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