Economic Evaluation of Diet and Physical Activity to Prevent Type 2 Diabetes: Systematic Review
2015
Studies indicate that combined diet and physical activity promotion programs can prevent type 2 diabetes among persons at increased risk. This paper systematically evaluates the evidence on cost, cost-effectiveness, and cost–benefit estimates of diet and physical activity promotion programs.
English-language studies from high-income countries that provided data on cost, cost-effectiveness, or cost–benefit ratios of diet and physical activity promotion programs with at least 2 sessions over at least 3 months delivered to persons at increased risk for type 2 diabetes. Twenty-eight studies were included. Costs were expressed in 2013 U.S. dollars. The median program cost per participant was $653. Costs were lower for group-based programs (median, $417) and programs implemented in community or primary care settings (median, $424) than for the U.S. DPP (Diabetes Prevention Program) trial and the DPP Outcomes Study ($5881).
Twenty-two studies assessed the incremental cost-effectiveness ratios (ICERs) of the programs. From a health system perspective, 16 studies reported a median ICER of $13 761 per quality-adjusted life-year (QALY) saved. Group-based programs were more cost-effective (median, $1819 per QALY) than those that used individual sessions (median, $15 846 per QALY). No cost–benefit studies were identified.
Economic Evaluation of Diet and Physical Activity to Prevent Type 2 Diabetes: Systematic Review
Source:
Li R, Qu S, Zhang P et al. Economic Evaluation of Combined Diet and Physical Activity Promotion Programs to Prevent Type 2 Diabetes Among Persons at Increased Risk: A Systematic Review for the Community Preventive Services Task Force. Annals of Internal Medicine 2015; 163 (6): 452-460. https://doi.org/10.7326/M15-0469