The ratio of the incidence of the disease among exposed and the incidence among non-exposed is called
Odds ratio
Relative risk
Attributable risk
None of the above
"Relative risk" (RR) or risk ratio is defined as the ratio between the incidence of disease among exposed persons and incidence among the non exposed.Incidence among exposedIQ = --------------------------------------------- x 100Incidence among non-exposedThe case-control study cannot give relative risk but from the case-control study, we can derive odds ratio.
Epidemiology