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Exploring Epidemiology: Understanding Disease Trends and Prevention

Dive into epidemiology's role in public health, studying disease distribution, causation, and prevention in populations. Learn about study designs, hypothesis testing, and statistical methods. Discover how epidemiology works to diagnose community health, assess disease risks, and implement interventions.

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Exploring Epidemiology: Understanding Disease Trends and Prevention

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  1. Epidemiology SAMPLE HEAL192 Basis of Public Health

  2. What is epidemiology? • The study of the distribution and determinants of health and determinants of health and disease in populations Significance of epidemiology: • Diagnose health of the community • Follow trends of disease • Assess risk of disease and why disease occurring • Interventions that can help prevent disease SAMPLE

  3. Questions that epidemiology can answer • Disease occurrence • Disease causation • Risk and association • Disease outcome • Disease management • Disease prevention SAMPLE

  4. How does epidemiology work? • Using data collected from samples of population • Applying statistical methods to test effectiveness of a treatment, whether to adopt screening techniques, is there an emerging disease etc. SAMPLE

  5. Scope • Different study designs • Statistics: measures of effect and association, hypothesis testing • Causation • Bias and confounders • Critical appraising epidemiological articles SAMPLE

  6. Study designs SAMPLE

  7. Hypothesis • Before doing a study design, we will need to set up a hypothesis • Hypothesis deals with what problem is needed to be dealt with 2 types of hypothesis • Null hypothesis • Alternative hypothesis SAMPLE

  8. Null hypothesis • HO • Hypothesis that is presumed true until an alternative hypothesis refutes the hypothesis • Variables have no association with each other or population distribution do not differ from one another SAMPLE

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