Observational studies of drug effects conducted using health care mega-databases often involve large cohorts with multiple time-varying exposures and covariates. These present formidable technical ...

Cohort sampling designs are proposed which one would intuitively expect to be more efficient than nested case-control sampling. Two of these designs start with a nested case-control sample and ...

PFAS are known as “forever chemicals” because they take an incredibly long time to break down in both the environment and ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

A new study presents GeneLLM, an AI-driven framework integrating cfDNA and cfRNA to improve preterm birth detection. Tested in 682 women, the model achieved nearly 90% accuracy, outperforming ...

Only 2-5% of all US patients are enrolled in a clinical trial. At the same time, at least 85% of clinical trials fail to meet their recruitment goals, nearly half under-enrol patients, and a striking ...

President Trump fired the head of the BLS, claiming manipulated jobs numbers after a report of slowed hiring. While revisions were more dramatic than usual, these numbers are always revised. WSJ ...

Add Charleston to the string of courtroom defeats for climate-change litigation targeting major energy producers, a legal trend likely to continue until the U.S. Supreme Court steps in. Critics see it ...

To determine how listeners learn the statistical properties of acoustic spaces, we assessed their ability to perceive speech in a range of noisy and reverberant rooms. Listeners were also exposed to ...

AI models can respond to text, audio, and video in ways that sometimes fool people into thinking a human is behind the keyboard, but that doesn’t exactly make them conscious. It’s not like ChatGPT ...