30-Second Takeaway
- Low-level particulate air pollution and neighborhood disorder measurably raise cardiometabolic and dementia risk in older adults.
- PREVENT equations perform well in EHR data, supporting race-free CVD risk stratification despite routine missingness.
- Food-as-medicine and tobacco-control policies deliver tangible health and economic benefits for low-income households.
- Childhood housing and obesity interventions highlight the need for durable, multi-level strategies beginning early in life.
- Access barriers markedly depress cancer screening, requiring coordinated financial, logistical, and psychosocial solutions.
Week ending April 18, 2026
Upstream levers for cardiometabolic, cancer, and brain health
Hypertension hospitalizations rise with PM2.5 even below current U.S. standards
Among >26 million Medicare beneficiaries living in ZIP codes consistently below 9 μg/m3 PM2.5, small exposure differences still increased risk. Each 1 μg/m3 higher annual PM2.5 was associated with a 2.8% increase in hypertension-related hospitalizations (95% CI, 2.5–3.2). Risks were higher for women, residents of the Midwest and Northeast, rural and suburban residents, and socioeconomically deprived neighborhoods. Findings suggest current U.S. PM2.5 standards may not adequately protect older adults from hypertension-related morbidity.
PREVENT CVD equations show strong EHR performance despite missing data
This Duke EHR cohort included 406,230 adults in a relaxed cohort and 127,151 in a strict, complete-data cohort. PREVENT equations showed strong discrimination, with C-index around 0.75–0.77 across sex and data-completeness cohorts. Allowing race-sex median imputation for missing laboratories and vital signs did not materially degrade discrimination versus complete-case analysis. Calibration suggested some risk underestimation, especially in the strict cohort, but performance resembled locally retrained and machine-learning models.
Neighborhood disorder raises dementia risk partly via cardiometabolic burden
In 9,426 adults aged ≥51 years from the Health and Retirement Study, 18.5% developed dementia over 14 years. Disordered neighborhoods were associated with higher dementia risk (HR 1.37; 95% CI, 1.08–1.74) and CIND risk (HR 1.50; 95% CI, 1.22–1.85). A composite cardiometabolic risk score mediated 16.2% of the association with dementia and 19.3% with CIND. Results highlight neighborhood conditions and cardiometabolic health as linked, modifiable targets for dementia prevention strategies.
Tobacco cessation could substantially uplift household economic status in India
Using data from 261,746 Indian households, investigators estimated economic gains if tobacco expenditures were redirected to other needs. They projected 20.49 million households (10.6%) could move to higher consumption quintiles after cessation, especially in rural areas. Among the poorest households, 12.4% (5.62 million) could shift upward, improving capacity to cover essential needs. Findings support aligning tobacco taxation, cessation support, and financial counseling with poverty-reduction strategies.
References
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Additional Reads
Optional additional studies from this edition.