INTRODUCTION
THERE ARE THREE MAIN CATEGORIES OF EPIDEMIOLOGY STUDIES:
• DESCRIPTIVE • ANALYTICAL • INTERVENTIONAL
• POTENTIAL DISEASE RISKS ARE OFTEN IDENTIFIED IN DESCRIPTIVE STUDIES ANALYTICAL AND INTERVENTIONAL DESIGNS.
THEN STUDIED IN
Increasing Knowledge of Disease/Exposure
Intervention stiudy
Clinical/experimental trials
Cohort Studies Analytical studies
Case-control Studies Descriptive Studies
Test link experimentally
Define it’s meaning with exposures Investigate it’s relationship to outcomes Develop hypothesis