<prompt> In a population of 10000, 2100 were alcoholic. 70 alcoholics among these developed cirrhosis and 23 non-alcoholic developed cirrhosis what is attributable risk -40607090  <response>: Ans. is d i.e., 90 o In a population of 10000 -i Exposed person 2100ii Nonexposed person 7900 10000-2100iii Incidence of disease among exposed70---2100x 1000 33 per 1000 exposed person iv Incidence of disease among nonexposed 23---7900x 1000 3 per 1000 nonexposed persono Attributable risk is the difference in incidence rates of disease or death between an exposed group and nonexposed group.AR Incidence of disease in exposed - Incidence of disease in unexposed---Incidence of disease in exposedx 100 AR 33-3---33x 100 90o That means 90 of cirohosis among alcoholics is due to alcohol exposure. 