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Research Summary

Daqing Diabetes Prevention Study II

Moderate confidence
Low bias
Last updated June 12, 2026

Key Takeaway:

The Daqing Diabetes Prevention Study II investigated the effectiveness of different lifestyle interventions on diabetes risk among adults in China. Results regarding the effectiveness of these interventions remain unclear.

Study at a Glance

Participants

duration

36 months

Intervention

Digital-based lifestyle intervention, Complex lifestyle intervention, Usual care

Outcomes

Cumulative incidence of type 2 diabetes mellitus, Blood glucose, Insulin, BMI, Waist circumference, Diabetes knowledge, Quality of life

Funding

Non-Industry Sponsored

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Main Effects

The study assessed the cumulative incidence of type 2 diabetes mellitus over three years.

Blood glucose levels were evaluated but specific results were not reported.

Insulin levels and BMI were also assessed without specific findings provided.

Evidence Summary

InterventionOutcomeMeasured ChangeStudy Effect
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Glycemic Control
Blood glucose
(Glycemic Control)
No Change
Unclear
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Weight & Anthropometrics
BMI
(Weight & Anthropometrics)
No Change
Unclear
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Adherence & Engagement
Diabetes knowledge
(Adherence & Engagement)
No Change
Unclear
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Glycemic Control
Insulin
(Glycemic Control)
No Change
Unclear
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Patient-Reported
Quality of life
(Patient-Reported)
No Change
Unclear
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Clinical Outcomes
Type 2 diabetes incidence
(Clinical Outcomes)
Decrease
Strong
Devices & Technology
Digital-based lifestyle intervention
(Devices & Technology)
Weight & Anthropometrics
Waist circumference
(Weight & Anthropometrics)
No Change
Unclear

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evidence suggest

Evidence Suggest

  • The primary outcome was the 3-year cumulative incidence of type 2 diabetes mellitus.
  • Multiple health metrics were assessed, including blood glucose and insulin levels.
  • No definitive conclusions on intervention effectiveness were reached.
who this applies

Who this applies to

  • Adults aged 25-55 with increased risk of type 2 diabetes.
  • Individuals working in factories in Daqing, Heilongjiang province, China.
keep in mind

Keep in Mind

  • The study's findings are based on a specific population and may not apply broadly.
  • Results for key health metrics were not detailed, limiting interpretation.
  • The unclear effectiveness of interventions suggests further research is needed.
between the lines

Between the Lines

  • Specific results for key outcomes were not reported.
  • The effectiveness of interventions remains unclear.
  • Limited generalizability due to the specific population studied.

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Journal Reference

Juan Z, Di L, Yachen W, et al. Daqing Diabetes Prevention Study II. Trials. 2026. doi:10.1186/s13063-025-09400-w

View DOIView on PubMedView on PMC

Connected Evidence

Discover how this study fits into the broader diabetes evidence landscape.

This study contributes to evidence on Digital Health Programs and Diabetes Incidence and Prevention.

Related evidence relationships

Explore in Evidence Archive

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

Questions this evidence helps answer

Key clinical and research questions this study contributes to.

Does digital-based lifestyle intervention improve Type 2 diabetes incidence?

Based on connected evidence for Digital-based lifestyle intervention and Type 2 diabetes incidence.

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