The Healthy @Reader's Digest on MSN

Scientists: This shockingly simple diet modification had the same anti-aging effect as quitting smoking

A two-year clinical trial found that one mild tweak transformed the rate of aging at the cellular level and reduced ...
JSTOR Daily

Methodologic Issues in Hospital Epidemiology. IV. Risk Ratios, Confounding, Effect Modification, and the Analysis of Multiple Variables

Jonathan Freeman, Donald A. Goldmann and John E. McGowan, Jr. Most information in hospital epidemiology comes from observational studies of hospitalized patients, not from planned experiments. Data ...
JSTOR Daily

Assessing Confounding, Effect Modification, and Thresholds in the Association between Ambient Particles and Daily Deaths

I examined the relationship between daily deaths and airborne particles in 10 U.S. cities with varying climatic conditions and seasons in which particle concentrations were high. Airborne particles ...