Assignment task:
Relative Risk (RR). Explanation Prospective Nature: Since the study is prospective, it follows participants over time to see who develops the outcomes of interest (heart failure, stroke, coronary heart disease). Relative risk is suitable for prospective studies as it compares the risk of an event occurring in the exposed group to the risk in the non-exposed group. Incidence Data: The study monitors the incidence of diseases, which means it is tracking new cases over time. Relative risk is ideal for comparing the incidence rates between different groups. Cohort Study Design: In cohort studies, relative risk is commonly used to measure the strength of the association between exposure (e.g., certain risk factors) and outcomes (e.g., heart disease). By using relative risk, researchers can determine how much more (or less) likely the exposed group is to develop the disease compared to the non-exposed group, providing valuable insights into potential risk factors and preventive measures.