Older US adults' experiences with and views about cognitive screening and blood biomarker testing for Alzheimer's disease.

Introduction: Dementia is underdiagnosed in the United States. Understanding of older adults' experiences with screening is needed to optimize diagnosis.

Methods: US adults ages 65 to 80 ( = 1298) were surveyed on experiences with cognitive screening and blood biomarker (BBM) testing.

Differences in US Adult Dietary Patterns by Cardiovascular Health and Socioeconomic Vulnerability.

Background: Naturally occurring dietary patterns, a major contributor to health, are not well described among those with cardiovascular disease (CVD) - particularly in light of socioeconomic vulnerability. We sought to identify major dietary patterns in the US and their distribution by CVD, social risk factors, and Supplemental Nutrition Assistance Program (SNAP) participation.

Methods: This was a cross-sectional study among 32,498 noninstitutionalized adults from the National Health and Nutrition Examination Survey (2009-2020).

Use of At-Home Medical Tests Among Older US Adults: A Nationally Representative Survey.

The availability of direct-to-consumer, at-home medical tests has grown over the last decade, but it is unknown how frequently older adults purchase at-home tests, how they perceive such tests, and how interested they are in using at-home tests in the future. We conducted a cross-sectional, nationally representative survey of non-institutionalized US adults aged 50 to 80 about their previous use of, perceptions of, and future intentions to use at-home medical tests. We found that nearly half of older adults (48.