tilahunigatu@yahoo.com   2
 DEFINITION Epidemiology  is the study of the distribution and patterns of health-events, health-characteristics and the...
EpidemiologyIt is the study of frequency, distribution,and determinants of diseases and otherhealth-related conditions in ...
Health: A state of complete physical, mental and       social well-being and not merely the absence       of disease or in...
1. William Farr (1839): Established  application of vital statistics for the  evaluation of health problems2. John Snow (1...
The ultimate purpose of Epidemiology isprevention of diseases and promotion ofhealthHow?1. Elucidation of natural history ...
1.   Studies are conducted on human     population2.   It examines patterns of events in people3.   Can establish cause-ef...
Four quantitative descriptors Numbers Ratios Proportions Rates         tilahunigatu@yahoo.com   9
Epidemiology
Epidemiology
Upcoming SlideShare
Loading in …5
×

Epidemiology

975 views

Published on

Published in: Health & Medicine, Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
975
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
34
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Epidemiology

  1. 1. tilahunigatu@yahoo.com 2
  2. 2.  DEFINITION Epidemiology is the study of the distribution and patterns of health-events, health-characteristics and their causes or influences in well-defined populations. It is the cornerstone method of research and practice, and helps inform policy decisions and evidence based medicine by identifying risk factors for disease and targets for preventive medicine and public policie
  3. 3. EpidemiologyIt is the study of frequency, distribution,and determinants of diseases and otherhealth-related conditions in a humanpopulation andthe application of this study to theprevention of disease and promotion ofhealth tilahunigatu@yahoo.com 4
  4. 4. Health: A state of complete physical, mental and social well-being and not merely the absence of disease or infirmity (WHO,1948)Disease: A physiological or psychological dysfunctionIllness: A subjective state of not being wellSickness: A state of social dysfunction tilahunigatu@yahoo.com 5
  5. 5. 1. William Farr (1839): Established application of vital statistics for the evaluation of health problems2. John Snow (1854): tested a hypothesis on the origin of epidemic of cholera3. Alexander Louis (1872): Systematized application of numerical thinking (quantitative reasoning) tilahunigatu@yahoo.com 6
  6. 6. The ultimate purpose of Epidemiology isprevention of diseases and promotion ofhealthHow?1. Elucidation of natural history ofdiseases2.Description of health status ofpopulation3. Establishing determinants of diseases4. Evaluation of intervention effectiveness tilahunigatu@yahoo.com 7
  7. 7. 1. Studies are conducted on human population2. It examines patterns of events in people3. Can establish cause-effect relationship without the knowledge of biological mechanism4. It covers a wide range of conditions5. It is an advancing science tilahunigatu@yahoo.com 8
  8. 8. Four quantitative descriptors Numbers Ratios Proportions Rates tilahunigatu@yahoo.com 9

×