It included three scenarios:
• The current situation, in which many people never receive a diagnosis or receive it later in the disease.
• A partial early-diagnosis scenario, with 88% of Alzheimer’s patients diagnosed in the MCI stage.
• A full early diagnosis scenario, in which all Alzheimer’s patients receive an early MCI diagnosis.
The current situation of inaccurate or late diagnosis remains the most expensive scenario. The model projected a total expenditure of $47.1 trillion over the lifetime of everyone alive in the United States in 2018 ($23.1 trillion in Medicare costs, $11.8 trillion in Medicaid costs, and $12.1 trillion in other costs). The report also noted that this total doesn’t include the current expense of caring for everyone in the United States who has Alzheimer’s now.