Exam (elaborations)
NR503 - Epidemiology Final Questions and Answers
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NR503 - Epidemiology Final
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NR503 - Epidemiology Finalexposed 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)
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