Unit 1451: Comprehensive Epidemiology

1. Introduction to Epidemiology

• Definition and scope of epidemiology
• Historical development and milestones
• Key epidemiological terms
  • Incidence
  • Prevalence
  • Mortality
  • Morbidity
• Role of epidemiology in public health and disease prevention

2. Study Designs in Epidemiology

• Overview of study design categories

2.1 Observational Studies

• Cohort studies
  • Prospective and retrospective
  • Strengths and limitations
• Case-control studies
  • Selection of cases and controls
  • Strengths and limitations
• Cross-sectional studies
  • Snapshot approach
  • Strengths and limitations

2.2 Experimental Studies

• Randomized controlled trials (RCTs)
  • Design and implementation
  • Strengths and limitations
• Ethical considerations in experimental studies

3. Measures of Disease Frequency

• Incidence rate
  • Definition and calculation
  • Types: cumulative incidence, incidence density
• Prevalence
  • Point prevalence vs. period prevalence
• Mortality rate and other vital statistics
• Application of measures in assessing disease burden

4. Measures of Association

• Relative Risk (RR)
  • Concept and calculation
  • Interpretation in cohort studies
• Odds Ratio (OR)
  • Concept and calculation
  • Use in case-control studies
• Attributable Risk (AR)
  • Definition and calculation
  • Public health significance

5. Surveillance and Outbreak Investigation

• Principles of disease surveillance
  • Types: passive, active, sentinel, syndromic
• Steps in outbreak investigation
  • Preparation and verification
  • Case definition and case finding
  • Descriptive epidemiology (time, place, person)
  • Hypothesis generation and testing
  • Control and prevention measures
• Response and communication strategies

6. Screening and Diagnostic Tests

• Purpose and importance of screening in public health
• Criteria for effective screening programs
• Test characteristics
  • Sensitivity
  • Specificity
  • Positive Predictive Value (PPV)
  • Negative Predictive Value (NPV)
• Interpretation of screening test results
• Implications for population health

7. Epidemiology of Infectious Diseases

• Modes of transmission
  • Direct and indirect transmission
• Patterns of outbreaks and epidemics
• Case studies of notable infectious disease outbreaks
• Prevention and control strategies
  • Vaccination
  • Quarantine and isolation
  • Hygiene and sanitation

8. Chronic Disease Epidemiology

• Overview of major chronic diseases
  • Cardiovascular diseases
  • Cancer
  • Diabetes
  • Respiratory diseases
• Risk factors and determinants
• Trends and epidemiological data
• Public health interventions and management strategies

9. Social Determinants of Health

• Definition and framework
• Key social determinants
  • Socioeconomic status
  • Education
  • Housing
  • Access to healthcare
• Impact on health disparities and outcomes
• Strategies to address social determinants