Fundamental Principles of Epidemiology a.k.a. “The Epidemiologist’s Mantra”

Since epidemiology seeks to identify the causes of disease, one of its fundamental objectives is to establish whether an association between a risk factor (or “exposure”)

Types of epidemiological studies

Epidemiological studies fall into two major types, both of which have their strengths and weaknesses:

Observational studies Experimental Studies

Observational studies rely on identifying (or “sampling”) a group of people in