Epidemiology: Types of Epidemiological Studies
There are two broad types of epidemiological studies:
1. Observational studies – we do not interfere in the process of the disease, but simply observe the disease and the associated factors.
2. Experimental studies – deliberate intervention is made and the effect of such intervention is observed.
Observational studies include:
Descriptive study and
Analytical study – Case control and cohort studies are the two types of analytical observational studies