<prompt> Incidence of disease among exposed - incidence among non-exposed x 1000 Incidence among exposed gives the value of-Relative riskAttributable riskOdd ratioNone of the above  <response>: Ans. is b i.e. Attributable risk Odds ratio is a measure of the strength of the association between risk factor outcome. Diseased Not Diseased Exposed A B Not Exposed C D Odds ratio ADBC Relative risk Incidence of disease among exposed x 1000 Incidence of disease among non-exposed Attributable risk Incidence of disease among exposed - incidence among non-exposed x 1000 Incidence among exposed AR indicaes to what extent the disease under study can be attributed to the exposure. Population Attributable Risk Incidence of disease in the total population - the incidence of disease among those who were not exposed attributable risk or excess risk is the difference in rate of a condition between an exposed population and an unexposed population. 