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The Societal Cost of Alzheimer's Disease depends on the Diagnosis Timing

Gagliardi, G. P.; Bonnet, N.; Schoentgen, B.; Defontaines, B.

2026-01-08 health economics
10.64898/2026.01.07.26343588 medRxiv
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BackgroundAlzheimers disease (AD) is a major public health issue with rising prevalence due to global aging. In France, official estimates report a societal cost of {euro}2.3 billion, however likely underestimating the true economic burden. MethodsA comprehensive economic model was developed to estimate the ADs societal cost in France. The model incorporated diagnosis timings (early, average, late), disease stages (MCI, mild, severe AD), direct and indirect costs, and different payors. ResultsTotal annual costs ranged from {euro}32.5B (late diagnosis) to {euro}36.5B (early). Early diagnosis increased total costs but reduced indirect burdens on patients. Key cost included medical expenses and home-based medical-social support. Per-patient costs varied between {euro}62,000 (early MCI) and {euro}175,000 (late sAD). ConclusionEarlier diagnosis increases total expenditures but improves care and cost allocation. Current and future medications focusing on the early stages of the disease, we need to invest in early diagnosis, which will reduce future expenditure.

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