NR503 - Epidemiology Final Exam Study Guide With Verified Solutions.

NR503 - Epidemiology Final Exam Study Guide With Verified Solutions. Exposed incidence - answerincidence of new cases of disease in persons who were exposed exposed incidence equation - answernumber exposed with disease / total number exposed unexposed incidence - answerincidence of new cases of disease in persons who were not exposed unexposed incidence equation - answernumber unexposed with disease / total number of unexposed incidence of disease - answermeasure of risk; total number in population with disease divided by total number of population incidence of disease equation - answernumber with disease / total population relative risk - answerrisk of disease in one group versus another; risk of developing disease after exposure; 1 = no risk relative risk equation - answer# exposed with disease/total of all exposed // # unexposed with disease/total all unexposed odds ratio - answermeasure of exposure and disease outcome commonly used in case control studies odds ratio equation - answerR(exposed)/1-R(exposed) / R(unexposed)/1-R(unexposed) prevalence - answernumber of cases of a disease in a given time regardless of when it began prevalence equation - answer(persons with disease / total pop) x1000 attributable risk - answerdifference in disease in those exposed and unexposed, calculated from prospective data; directly attributed to exposure (if exposure gone, disease gone) attributable risk equation - answerR(exposed) - R(unexposed) crude birth rate - answernumber of live births per 1000 people in population crude birth rate equation - answer(# of births/estimated mid-year population) x1000 crude death rate - answerthe number of deaths per 1000 people in population