Objectives The objective of this paper is to show the benefits of using a 2-phase case—control (2PCC) design in identifying dose—response relationships between cumulative occupational exposure as ...

We detail study design options that generalize case–control sampling when longitudinal outcome data are already collected as part of a primary cohort study, but new exposure data must be ...

A case-control study is a type of medical research investigation often used to help determine the cause of a disease, particularly when investigating a disease outbreak or rare condition. If public ...