Epidemiology – Introduction, Aims, Types & Study Designs | Community Health Notes

Learn epidemiology with comprehensive, easy-to-understand notes covering its definition, aims, and methods. Explore observational and experimental studies, descriptive and analytical epidemiology, cross-sectional studies, cohort studies, case-control studies, and randomized controlled trials. Includes examples, flowcharts, advantages, disadvantages, and study design comparisons for medical and nursing students.