Concepts of Epidemiology  
What is Epidemiology?  In Spanish

The epidemiological concept of population

Variation in disease by time, place and person: A framework for analysis

Variation: role of error, bias and confounding

Cause and effect: the epidemiological approach


Natural history, spectrum, iceberg, population patterns and screening: interrelated concepts in the epidemiology of disease  

Risk and frequency: incidence and prevalence

Presentation and interpretation of epidemiological data: objectives

Study design

Theoretical, ethical, contextual, practical and critical foundations for future epidemiology

 Additional resourses:  (free) Book on CHD in South Asians - Authors Kiran C R Patel, Raj S Bhopal  South Asian Health Foundation website