1. Agency for Healthcare Research and Quality. (2022a). HCUP cost-to-charge ratio (CCR) for the national inpatient sample (NIS). Healthcare Cost an Utilization Project (HCUP),. https://www.hcup-us.ahrq.gov/db/ccr/ip-ccr/ip-ccr.jsp.
2. Agency for Healthcare Research and Quality. (2022b). NIS database documentation. Healthcare Cost an Utilization Project (HCUP),. https://www.hcup-us.ahrq.gov/db/nation/nis/nisdbdocumentation.jsp.
3. Alzheimer's Association. (2022). 2022 Alzheimer's disease facts and figures.
4. Underdiagnosis of dementia: An observational study of patterns in diagnosis and awareness in US older adults;Amjad;Journal of General Internal Medicine,2018
5. Estimating marginal and incremental effects on health outcomes using flexible link and variance function models;Basu;Biostatistics (Oxford, England),2005