Lecture 02a - Lecture 2 Part I Mechanisms of disease and...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Lecture 2 Part I Mechanisms of disease and disease models Concepts of disease and health Disease models Natural history of disease Levels of prevention What do epidemiologists mean by disease? Recall the WHO definition of health: the extent to which an individual or a group is able to realize aspirations and satisfy needs, and to change or cope with the environment. Health is a resource for everyday life, not the objective of living; it is a positive concept, emphasizing social and personal resources as well as physical capabilities. WHO 1984 The scope of epidemiologic inquiry is very wide. Events that we measure and study include: Disease: a physiological or psychological dysfunction Examples: tuberculosis, breast cancer, angina, AIDS, autism Illness: subjective state of a person who is aware he/she is unwell Examples: subjective measures of health status (Quality of Life) From: Last JM [ed.] Dictionary of Epidemiology. 2nd edition Events that we measure and study include: Outcomes: all identified changes in health status arising as a consequence of the handling of a health problem Examples: disease recurrence, death, quality of life, functional status Sickness: a state of social dysfunction (disorder, disease, syndrome) Examples: eating disorders, alchoholism, drug addiction From: Last JM [ed.] Dictionary of Epidemiology. 2nd edition Concepts of Disease and Health Classes of Disease: Communicable (infectious) disease: An illness due to a specific infectious agent or its toxic products Noncommunicable (noninfectious) disease: An illness that cannot be transmitted to others either directly or indirectly Small Group Discussion When we think of studying disease, is disease a stable concept? Why/why not? Models of Disease Epidemiology Triangle or Ecological Model: Host: intrinsic...
View Full Document

This note was uploaded on 02/23/2012 for the course EPID 301 taught by Professor Richardson&aronson during the Spring '09 term at Queens University.

Page1 / 19

Lecture 02a - Lecture 2 Part I Mechanisms of disease and...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online