Uses of epidemiology

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Use of epidemilogy in day to day practice

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Uses of epidemiology

  1. 1. USES OF EPIDEMIOLOGY Dr Deodatt M Suryawanshi .(Asst Prof CM)
  2. 2. Learning objectives     Define epidemiology Differences between clinical medicine vs Epidemiology Uses of epidemiology Apply in daily use
  3. 3. Derivation of word     Greek term Epi – upon , Demos – population logos – scientific study
  4. 4. Definition  The study of frequency ,distribution and determinants of disease and health related states and events and application of knowledge in prevention ,control and mitigation of these problem
  5. 5. Epidemiology was born before clinical medicine  400 B C –Hippocrates occurrence of human disease to environment.  1747 -James lind treatment of scurvy by oranges.  1768 -Edward Jenner - Small pox vaccine.  1850 - Semmel weis puerperal sepsis – hand washing.  1853 – John snow control of cholera epidemic.  1950s -Doll and hill smoking causes lung cancer.
  6. 6. Major Break through of epidemilogy today  Where only preventive methods have work in controlling the disease HIV/AIDS Preventive recommendations promiscuity ,needle sharing and other
  7. 7. Uses of Epidemiology Classify 1. In Health care Management 2. Understanding disease process 3. In public health practice 4. In clinical and preventive practice
  8. 8. In Health care Management  Making Community diagnosis  Take in account socio demographic data  Quantifying and summarizing
  9. 9. Epidemiology Vs Clinical Medicine Clinical medicine   Focus is on an individual Physician Uses Lab tools for diagnosis Epidemiology        Does not take other factors in account Does not form assumptions Does not help in policy formulation Not a quantitative    Focus is on Group Epidemiologist uses quantitative tool for community diagnosis Takes into account all factors which cause disease Form assumptions or hypothesis Helps in Public health policy formulation Quantitative and qualitative science
  10. 10. Example of Community diagnosis
  11. 11. Planning and evaluation of health service  Accurate information socio demo profile,the diseases,health facilities .  Evaluation of a programme for its impact
  12. 12. Developing health policies
  13. 13. Understanding the disease process  Study of natural history of diseases. Ex HIV  Search for causes and risk factors of disease.  Historic study of rise and fall of diseases. Ex plague, influenza, Lung cancer  To identify syndromes.  Association of two or more symptoms more frequently
  14. 14. Uses in Public Health practice  Investigation of epidemic.  Surveillance for diseases.  Making projections.  Assessing the programme for mass screening for diseases.  Assisting in formulating medical teaching curriculum
  15. 15. Uses in clinical research  Indispensable science for clinical research  Assessment of effectiveness of various treatment modalities.  One drug is better for treatment than other  Assessing prognosis.  Assessing the effectiveness of Diagnostic procedures.  One diagnostic procedure is more effective
  16. 16. Guiding clinical decision.
  17. 17. Take home message…. Epidemiology is indispensible to clinical medicine.
  18. 18. Thanks

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