From the abstract:
In this cohort study of 81 364 Medicare beneficiaries living in single-person households, those with ADRD were more likely to miss bill payments up to 6 years prior to diagnosis and started to develop subprime credit scores 2.5 years prior to diagnosis compared with those never diagnosed. These negative financial outcomes persisted after ADRD diagnosis, accounted for 10% to 15% of missed payments in our sample, and were more prevalent in census tracts with less college education.