Can someone with any of the outcomes of interest be enrolled in a cohort study? YesNo

Yes, someone with any of the outcomes of interest can be enrolled in a cohort study. However, it's important to note that this may introduce bias into the study. In a cohort study, researchers typically follow a group of people (the cohort) who do not have the outcome of interest at the start of the study. They then compare the incidence of the outcome of interest in different exposure groups within the cohort over time. If someone already has the outcome of interest at the start of the study, this could potentially skew the results.