Study Design - Case-control study, Cross-sectional study, Cohort study, Prospective Cohort study, Retrospective Cohort study. Correlation vs. causation.

Length of stay outliers are associated with hospital-acquired infections, complications, and discharge to facility, as opposed to nonmodifiable risk factors like age and comorbidities. Objectives: ...

As biomarker studies employ increasingly complex and expensive genomics and other correlative methods, it is increasingly important to rigorously design these studies and analyze the downstream ...

Observational studies are emerging as fundamental sources of information about vaccine effectiveness outside the controlled environment of randomized trials, and they are being used to generate ...