Nancy Dreyer, PhD, MPH, FISE, chief scientific advisor to Picnic Health, shares some of the ways that direct-to-patient approaches have improved observational research. Direct-to-patient ...

“This is the first major study to compare the effect of two common diabetes treatments — GLP-1 medicines and metformin — on dementia risk, using health records from more than 174,000 people. The ...

A Kansas State University engineer recently published results from an observational study in support of a century-old theory that directly challenges the validity of the Big Bang theory.

While observational studies indicated a positive association between smoking status and the risk of CKD, the Mendelian randomization analysis revealed no evidence of a causal relationship.