What are attributable factors?

The attributable fraction is the candidate tool to quantify individual shares of each risk factor on the disease burden in a population, expressing the proportion of cases ascribable to the risk factors.

What is the formula for attributable risk percent?

It is calculated by taking the risk difference, dividing it by the incidence in the exposed group, and then multiplying it by 100 to convert it into a percentage.

How do you interpret population attributable risk?

Population attributable risk (PAR) is the proportion of the incidence of a disease in the population (exposed and unexposed) that is due to exposure. It is the incidence of a disease in the population that would be eliminated if exposure were eliminated.

What is an example of attributable risk?

Often, attributable risk is given as a percentage (called the attributable risk percent or AR%). For example, lung cancer has many causes, including smoking cigarettes and exposure to indoor radon. One study showed that the AR% for cigarette smoking and lung cancer was 85%.

What are the uses of attributable risk?

Attributable risk (AR) helps measure the excess risk associated with the risk factor. Population attributable risk (PAR) gives the added risk in relation to the total population. Population attributable risk percent (PAR%), gives the percent of cases in the total population that can be attributed to the risk factor.

What is the difference between attributable risk and relative risk?

Relative risk (RR) is a measure of the strength of the association or causal link between a risk factor and an outcome. Attributable risk (AR) helps measure the excess risk associated with the risk factor.

Is attributable risk and absolute risk the same?

Attributable risk measures the excess risk accounted for by exposure to a particular factor. 2 This is simply the difference between the absolute risks in the two groups. The term attributable risk is most commonly used in epidemiological studies.