Excess relative risk (ERR)
Excess relative risk is expressed as relative risk (RR) minus one, or that portion of the RR accounted for by the particular risk factor under study (A-bomb radiation, in this instance).
RERF is a US-Japan cooperative research institute that investigates the health effects of atomic bomb radiation for peaceful purposes.
Excess relative risk is expressed as relative risk (RR) minus one, or that portion of the RR accounted for by the particular risk factor under study (A-bomb radiation, in this instance).