EPIDEMIOLOGICAL
CONCEPTS AND
PRINCIPLES
@2023
, WHAT IS EPIDEMIOLOGY?
• The study of factors that determine the occurren
and distribution of disease in a population.
• Epidemiology was introduced in the 19th centur
derived from three greek roots:
epi, meaning “upon”;
demos, “people” or “population”; and
logos, “discussion” or “study.”
, MAJOR TYPES OF EPIDEMIOLOGY
• CLASSICAL EPIDEMIOLOGY, Which is populati
oriented, studies the community origins of hea
problems, particularly those related to infectio
agents; nutrition; the environment; human behavi
and
• the psychological, social, economic, and spiritual sta
of a population.
• Classical epidemiologists are interested in discoveri
risk factors that might be altered in a population
CONCEPTS AND
PRINCIPLES
@2023
, WHAT IS EPIDEMIOLOGY?
• The study of factors that determine the occurren
and distribution of disease in a population.
• Epidemiology was introduced in the 19th centur
derived from three greek roots:
epi, meaning “upon”;
demos, “people” or “population”; and
logos, “discussion” or “study.”
, MAJOR TYPES OF EPIDEMIOLOGY
• CLASSICAL EPIDEMIOLOGY, Which is populati
oriented, studies the community origins of hea
problems, particularly those related to infectio
agents; nutrition; the environment; human behavi
and
• the psychological, social, economic, and spiritual sta
of a population.
• Classical epidemiologists are interested in discoveri
risk factors that might be altered in a population
