- Health Systems, Economic Evaluations, Quality of Life
- HIV/AIDS Research and Interventions
- HIV, Drug Use, Sexual Risk
- Health disparities and outcomes
- Geriatric Care and Nursing Homes
- HIV Research and Treatment
- Dementia and Cognitive Impairment Research
- Healthcare Policy and Management
- Healthcare cost, quality, practices
- COVID-19 epidemiological studies
- SARS-CoV-2 and COVID-19 Research
- Migration, Aging, and Tourism Studies
- Pharmaceutical Economics and Policy
- Global Maternal and Child Health
- Artificial Intelligence in Healthcare
- Retirement, Disability, and Employment
- COVID-19 Clinical Research Studies
- Acute Ischemic Stroke Management
- Bariatric Surgery and Outcomes
- Frailty in Older Adults
- Non-Invasive Vital Sign Monitoring
- Traffic and Road Safety
- Uterine Myomas and Treatments
- HIV/AIDS drug development and treatment
- Public Procurement and Policy
Johns Hopkins University
2019-2025
Johns Hopkins Medicine
2022
University of York
2021
University of Maryland, College Park
2021
University of Southern California
2013-2020
Palo Alto University
2019
Stanford University
2019
Abstract Introduction There is insufficient understanding of diagnosis etiologic dementia subtypes and contact with specialized care among older Americans. Methods We quantified diagnoses subsequent health over five years by subtype physician specialty Medicare beneficiaries incident in 2008/09 (226,604 persons/714,015 person‐years). Results Eighty‐five percent people were diagnosed a nondementia specialist physician. Use specialists within one year (22%) (36%) was low. “Unspecified” common,...
Substantial gaps remain in understanding the trade-offs between costs and benefits of choosing alternative human immunodeficiency virus (HIV) prevention strategies, including test-and-treat (expanded HIV testing combined with immediate treatment) PrEP (initiation preexposure prophylaxis by high-risk uninfected individuals) strategies. We develop a mathematical epidemiological model to simulate incidence among men residing Los Angeles County, California, aged 15-65 years, who have sex men....
Background:Four prescription drugs (donepezil, galantamine, memantine, and rivastigmine) are approved by the US FDA to treat symptoms of Alzheimer's disease (AD). Even modest effectiveness could potentially reduce population-level burden AD related dementias (ADRD), especially for women racial/ethnic minorities who have higher incidence ADRD. Objective:Describe prevalence antidementia drug use timing initiation relative ADRD diagnosis among a nationally representative group older Americans,...
Background. There is evidence to suggest that antiretroviral therapy (ART) and testing for human immunodeficiency virus (HIV) reduce the probability of transmission HIV. This has led health officials across United States take steps toward a test-and-treat policy. However, extent benefits generated by debatable, there are concerns, such as increased multidrug resistance (MDR), remain unaddressed.
Community health programs aimed at addressing the social determinants of often face challenges demonstrating their impact through traditional economic evaluation methods return-on-investment analysis, cost-effectiveness or cost-benefit analysis. Using a social-return-on-investment (SROI) we evaluated broader social, environmental, and benefits Bon Secours Hospital's Housing for Health program, an affordable housing program environmental affecting its community's in Baltimore, Maryland....
This Viewpoint discusses the racial and ethnic bias of pulse oximetry devices presents interdisciplinary proposals to address it.
Background Subjective cognitive impairment (SCI), assessed in national surveys, offers potential for dementia monitoring and early detection. However, its causal link to risk remains unclear. Objective To evaluate whether SCI causally affects U.S. older adults (≥65 years), considering mortality as a competing risk. Methods Using data from 1622 dementia-free the National Health Aging Trends Study (NHATS) during 2011–2019, we estimated total, direct, separable effects of on risks. Results was...
Background: Poor dietary quality is associated with perinatal obesity, including excess gestational weight gain, a risk factor for future cardiometabolic disease. Despite the need to assess and intervene on in pregnancy, few studies have identified screeners that are easy use comparable performance research as well general population. We sought describe patterns of participants early pregnancy using Dietary Screener Questionnaire (DSQ) compare results matched non-pregnant sample from...
Abstract Addressing disparities related to Alzheimer's disease and dementias (AD/ADRD) is a priority for policymakers, practitioners, researchers. In this perspective, we highlight important gaps opportunities presented during Session 4: Disparities in Health Care Access, Utilization, Quality , of the 2023 National Research Summit on Care, Services, Supports Persons Living with Dementia Their Partners/Caregivers . We call attention three areas: (1) increased data availability linkages across...
Abstract Background and Objectives Older adults prefer to age in place, but sociodemographic, health, socioeconomic factors may influence their decision remain the community. Guided by Andersen’s behavioral model, we characterize incident transitions out of community into residential care settings or nursing homes identify predictors these transitions. Research Design Methods Study participants include 2,725 (weighted n = 13,704,390) community-dwelling U.S. older National Health Aging Trends...
Abstract BACKGROUND Subjective cognitive impairment (SCI) measures in population‐based surveys offer potential for dementia surveillance, yet their validation against established is lacking. METHODS We assessed agreement between SCI and a validated probable algorithm random one‐third sample ( n = 1936) of participants the 2012 National Health Aging Trends Study (NHATS). RESULTS was more prevalent than (12.2% vs 8.4%). Agreement 90.0% substantial strength. Misclassification rates were higher...
The role of altruism in the acceptance novel preventive healthcare technologies like vaccines has not been thoroughly elucidated.
Matching methods are assumed to reduce the likelihood of a biased inference compared with ordinary least squares (OLS) regression. Using simulations, we inferences from propensity score matching, coarsened exact and unmatched covariate-adjusted OLS regression identify which methods, in scenarios, produced unbiased at expected type I error rate 5%. We simulated multiple data sets systematically varied common support, discontinuities exposure and/or outcome, prevalence, analytical model...
Reports suggest that preoperative optimization of a patient's serious comorbidities is associated with reduction in postoperative complications.
Abstract The purpose of this study was to measure the prevalence use driver monitoring systems among U.S. adults, and factors influencing their adoption. One in five adults has used monitoring, primarily obtain a discount on insurance. Safety benefits financial incentives are likely influence
The United States' (U.S.) initiative to End the HIV Epidemic aims reduce new infections in areas of high prevalence. Despite national efforts incidence, cisgender women continue represent approximately one out every five diagnoses U.S. Taking pre-exposure prophylaxis (PrEP) is an effective prevention strategy; however, PrEP initiation among suboptimal, with only 10% eligible receiving prescriptions 2019.