Cost-Effectiveness of Lifestyle Interventions for Diabetes Prevention
Summary
Type 2 diabetes poses a growing global health and economic burden. Evidence from clinical trials and modelling studies demonstrates that lifestyle interventions—focusing on dietary modification, increased physical activity and weight management—can delay or prevent the onset of diabetes in high-risk individuals. Economic evaluations employ metrics such as quality-adjusted life years (QALYs) and incremental cost-effectiveness ratios (ICERs) to assess value for money from healthcare and societal perspectives. Markov and decision-tree models project long-term costs and health outcomes, accounting for transition probabilities between glycaemic states and the downstream costs of diabetes complications. Across diverse settings, lifestyle programmes often prove cost-effective—and in some younger cohorts cost-saving—compared with usual care or pharmacological alternatives. Digital delivery modes, including text messages and smartphone applications, have emerged as scalable variants with comparable cost-effectiveness. However, heterogeneity in intervention intensity, adherence, time horizon and willingness-to-pay thresholds influences the magnitude of cost-effectiveness. In low-income and middle-income countries, context-specific assumptions about healthcare costs, GDP per capita thresholds and programme implementation capacity shape the economic case. Overall, well-structured lifestyle prevention initiatives represent a robust investment to reduce future diabetes incidence and allocate health resources efficiently on a global scale.
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Cost-Effectiveness of Lifestyle Interventions for Diabetes Prevention publication trend
The graph below shows the total number of articles in cost-effectiveness of lifestyle interventions for diabetes prevention across all publications each year (not limited to Nature Index journals).
Technical terms
Quality-adjusted life year (QALY): A composite measure that combines life expectancy and health-related quality of life on a scale where one QALY equates to one year of life in perfect health.
Incremental cost-effectiveness ratio (ICER): The additional cost per additional unit of health benefit (for example, cost per QALY gained) when comparing one intervention to another.
Markov model: A mathematical framework that simulates transitions between health states over time, capturing long-term costs and outcomes.
Impaired glucose tolerance (IGT): A pre-diabetic condition characterised by higher than normal blood glucose levels after a glucose challenge, indicating elevated diabetes risk.
Lifestyle intervention: A structured programme promoting dietary change, physical activity and weight loss to prevent or delay the onset of type 2 diabetes.
References
- Cost effectiveness review of text messaging, smartphone application, and website interventions targeting T2DM or hypertension. npj Digital Medicine (2023).
- Cost saving analysis of prediabetes intervention modalities in comparison with inaction using Markov state transition model—A multiregional case study. Journal of Diabetes (2024).
- An economic evaluation for prevention of diabetes mellitus in a developing country: a modelling study. BMC Public Health (2013).
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