COHORT STUDIES

8. COHORT STUDIES

Cohort studies are one of the most important study designs in epidemiology and pharmacoepidemiology. They follow groups of individuals over time to evaluate the association between exposure—such as drug use—and…

CROSS – SECTIONAL STUDIES

7. CROSS-SECTIONAL STUDIES

Cross-sectional studies are among the most widely used research designs in epidemiology and pharmacoepidemiology. They provide a snapshot of health, disease, or drug-use patterns in a population at a single…

CASE REPORTS

5. CASE REPORTS

Case reports are one of the earliest and simplest study designs used in clinical research and pharmacoepidemiology. They provide detailed descriptions of unusual clinical events, rare adverse drug reactions, or…

DRUG UTILIZATION REVIEW

4. DRUG UTILIZATION REVIEW (DUR)

Drug Utilization Review (DUR) is an important component of pharmacoepidemiology and clinical pharmacy practice. It is a structured, ongoing, and systematic process of evaluating the use of medicines to ensure…