What is the difference between relative risk and attributable risk?
Then, is attributable risk the same as risk difference?
Attributable risk (AR) or risk difference is the difference between the incidence rates in exposed and non-exposed groups. This reflects the absolute risk of the exposure or the excess risk of the outcome (e.g. disease) in the exposed group compared with the non-exposed group.
Likewise, what do we mean by relative risk as opposed to population attributable 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. Population attributable risk (PAR) gives the added risk in relation to the total population.
Attributable Risk(AR) (sometimes called Attributable Proportion or Attributable Fraction) is a measure of the prevalence of a condition or disease. Given a group of people exposed to a risk, it's the fraction who develop a disease or condition.