case cohort study

https://doi.org/10.1351/goldbook.15538
Variant of the case control study in which the controls are drawn from the same cohort as the cases but are identified before the cases develop; some of the controls may later become cases.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1186 [Terms] [Paper]