Title: Descriptive Epidemiology
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Descriptive Epidemiology
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3Epidemiology
- Study of frequency , distribution determinants
of diseases in human population
Descriptive
Analytic
4Objectives of Descriptive Epidemiology
- To permit evaluation of trends in health and
comparisons among countries and subgroups within
countries - To provide a basis for planning, provision, and
evaluation of health services - To identify problems to be studied by analytic
methods and to suggest areas that may be fruitful
for investigation
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13????? ??? ???? (Epidemic Curve)
- Represent cases over time by a histogram
- Horizontal axis time
- Date of exposure
- Date of symptom onset
- Date of diagnosis
- Vertical axis number of cases
- Clues to nature of outbreak
14????? ??? ???? (Epidemic Curve)
15????? ??? ???? (Epidemic Curve)
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24Epidemic Map
25Epidemic Map
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