HE300 Study Guide - Final Guide: Age Adjustment, Relative Risk, Positive And Negative Predictive Values
Document Summary
Attack rate = number of people at risk in whom a disease develops. Incidence rate (risk) = # of new cases of a disease in a population during a specified time period. # of persons at risk for developing the disease during a specified time period. Cumulative incidence rate = # of new cases of a disease in a population during a specified time period. # of persons at risk for developing the disease during a specified time period (all pop. ) Incidence density = # of new cases of a disease in a population during a specified time period total person-time. Person-time = (time each individual was at risk and was observed) Prevalence = # of cases of a disease present in the population at a specified time. # of persons in the population at that specified time. Steady-state prevalence = incidence x duration of disease.
