Epidemiology ppt Principles of Epidemiology-Public Health Lecture Notes Powerpoint links collected from the website of : University of North Carolina School of Public Health Introduction Studying populations Epidemiologic measures – Incidence and prevalence Natural history of disease / Population screening Study designs: Intervention studies Study designs: Cohort studies Study designs: Cross-sectional studies Study designs: Case-control studies Selection bias Information bias Critically reading epidemiologic studies Confounding Data analysis and causal inference (part 1) Data analysis and causal inference (part 2) Role of epidemiology in public health