30-Second Takeaway
- Mailed FIT outreach and patient navigation outperform usual care for colorectal cancer screening, particularly where baseline uptake is low.
- Daily step prescriptions should explicitly incorporate sedentary time; some cardiac risks remain even with high step counts.
- Neighborhood food access, migration histories, and structural policies strongly shape CVD, TB, HIV, and SUD risk and inequities.
- Brief, model-based digital or school interventions can shift tobacco and HIV behaviors in resource-limited and hard-to-reach groups.
- Regulatory tools—from PDMPs to PM2.5 standards—can either worsen or mitigate inequities depending on design and implementation.
Week ending April 11, 2026
From steps and screens to structures and standards: concise levers for cardiometabolic, cancer, TB, HIV, and SUD prevention
Mailed FIT outreach and navigation most effectively boost colorectal cancer screening
This network meta-analysis pooled 76 randomized trials comparing eight strategies to increase colorectal cancer screening. Patient navigation and mailed FIT outreach produced the largest gains versus usual care, with risk ratios of 1.58 and 1.36, respectively. Mailed FIT outreach outperformed colonoscopy outreach and was especially effective where baseline uptake was under 30%. Educational multimedia and reminder-only interventions showed modest, often nonsignificant benefits, and colonoscopy outreach added little beyond usual care.
Extra daily steps partially offset harms of prolonged sedentary time
This longitudinal Fitbit-based analysis from the All of Us program related sedentary time and step counts to incident chronic conditions. Greater sedentary time raised risk for obesity, diabetes, hypertension, coronary disease, heart failure, CKD, liver disease, COPD, depression, sleep apnea, and atrial fibrillation. Adding roughly 1700 to 5500 daily steps mitigated excess risk from very high sedentary time for several conditions. No step count fully offset sedentary risk for coronary artery disease or heart failure, underscoring limits of walking alone.
Urban TB prevalence equals or exceeds rural burden in many LMICs
This systematic review and meta-analysis included 47 community prevalence surveys with over 2.45 million participants in low- and middle-income countries. Urban bacteriologically confirmed TB prevalence was slightly higher than rural, with a pooled urban-to-rural prevalence ratio of 1.09. Smear-positive disease showed a similar pattern, with an urban-to-rural prevalence ratio of 1.24 and notable regional variation. Findings indicate increasing urbanization of TB epidemics, supporting intensified urban screening, case-finding, and preventive interventions.
References
Numbered in order of appearance. Click any reference to view details.
Additional Reads
Optional additional studies from this edition.