Cohort Study 5
Cohort Study 5 : An analytic observational study where a well-defined group of disease free people who have had a common experience or exposure are followed up through time, looking for disease outcomes. The starting point occurs before the onset of the disease or outcome, having already identified postulated causal factors. It's like a number of snapshots taken at periodically of all family members who could be present, looking for clues as to why some got sick. A study in which a group of people with a past exposure to chemicals or other risk factors are followed over time and their disease experience compared to that of a group of people without the exposure
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