NR 503 Mid Term Study Guide.docx NR503 NUR 503 Mid-Term Study Guide 1. Understand and compare the different measures of morbidity a. Incidence and prevalence i. Define A prevalence rate is the proportion of th
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NR 503 Mid Term Study Guide.docx NR503 NUR 503 Mid-Term Study Guide 1. Understand and compare the different measures of morbidity a. Incidence and prevalence i. Define A prevalence rate is the proportion of the population that has a health condition at a point in time. For example, 70 influenza case-patients in March 2005 reported in County A. Incidence rate or person-time rate is a measure of incidence that incorporates time directly into the denominator. Incidence refers to the occurrence of new cases of disease or injury in a population over a specified period of time. Although some epidemiologists use incidence to mean the number of new cases in a community, others use incidence to mean the number of new cases per unit of population. ii. Understand why data are important for measuring risk iii. Interpret findings Interpretation involves putting the study findings into perspective, identifying the key take-home messages, and making sound recommendations. Doing so requires that the epidemiologist be knowledgeable about the subject matter and the strengths and weaknesses of the study iv. Understand the relationship between incidence and prevalence and impact of each on duration of disease The two primary measures of morbidity are incidence and prevalence. • Incidence rates reflect the occurrence of new disease in a population. An incidence rate describes how quickly disease occurs in a population. • Prevalence reflects the presence of disease in a population. v. Calculate inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. .. . . . . . . . . . . . . . . . . . .. . . . .
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