Introduction

Influencing Factors

Epidemiology can help us identify and understand the factors that influence the emergence, severity, and consequences of health problems such as:

• Tobacco use and lung cancer
• Lead exposure and developmental disabilities
• Childhood vaccine initiatives and child mortality
• Physical activity and heart disease
• Diet and longevity
• Seat belt use and motor vehicle injuries/deaths
• Statin drugs and outcomes of atherosclertic heart disease