Epidemiology Final Exam Review

mortality rate - CORRECT ANSWER Total no of deaths from all causes in year/No of persons in the population at midyear *time must be specified* cause specific mortality rate - CORRECT ANSWER - limiting the rate of death to a certain disease - No of deaths from lung cancer in one year/ No of persons in the population at midyear case-fatality rate - CORRECT ANSWER - % of people who have a certain disease die within a certain time after diagnosis - measure severity of the disease - No of individuals dying during a specified period of time after disease onset or diagnosis/No. of individuals with the specified disease morbidity - CORRECT ANSWER usually refers to the incidence of disease in the population absolute risk - CORRECT ANSWER - incidence of a disease in a population - indicate the magnitude of the risk in a group of people with a certain exposure, but because it does not take into consideration the risk of disease in nonexposed individuals relative risk formula - CORRECT ANSWER (risk in exposed)/(risk in nonexposed) relative risk - CORRECT ANSWER probability of developing a disease in exposed people compared to the probability of developing a disease in nonexposed people, - ratio of the two probabilities. - used in COHORT studies how to interpret relative risk - CORRECT ANSWER - RR= 1: no association - RR1: positive association, possibly causal -RR1: negative association, possibly protective odds ratio for cohort studies - CORRECT ANSWER - (odds that an exposed person develops disease) / (odds that a non-exposed person develops disease) - (a/b)/(c/d) = (ad/bc) odds ratio for case control studies - CORRECT ANSWER - (odds that a case was exposed)/(odds that a control was exposed) - ad/bc attributable risk - CORRECT ANSWER amount/proportion of disease incidence (or disease risk) that can be attributed to a specific exposure. attributable risk formula - CORRECT ANSWER (incidence in exposed group) - (incidence in nonexposed group)/ (incidence of people exposed) population attributable risk - CORRECT ANSWER - proportion of the disease incidence in a total population (including both exposed and nonexposed people) that can be attributed to a specific exposure pop attributable risk formula - CORRECT ANSWER - (incidence in