2023 NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (VersionNR 503 Final Study Guide (Version NR 503 Final

2023 NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (VersionNR 503 Final Study Guide (Version NR 503 Final Study Guide (VersionNR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version NR 503 Final Study Guide (Version -2), Final Exam 2), Final Exam 2), Final Exam 2), Final Exam 2), Final Exam 2), Final Exam NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical NR 503 Population Health, Epidemiology & Statistical Principles, Chamberlain. Principles, Chamberlain. Principles, Chamberlain. Principles, Chamberlain.Principles, Chamberlain. Principles, Chamberlain. Principles, Chamberlain. 1. Objectives of epidemiology a. Understand the aetiology or cause of a disease (risk factors) b. Find out the extent that a disease or health problem affects a community or population c. Determine the natural history or prognosis d. Evaluate existing and newlydevelopedpreventativetherapeutic measures and modes of healthcare delivery 2. Define, compare, calculate, and interpret Measures of Morbidity a. Incidence rate: measurement of the number of new individuals who contract a disease during a particular period of time i. Calculation: Number of new cases of disease or injury during specified period DIVIDED BY Size of population at start of period b. Attack rate: Same as risk, proportion of individuals in a population (initially freeof disease) who develop the disease within a specified time interval. i. Calculation: Total number of new cases DIVIDED BY The total population c. Prevalence: measurement of all individuals affected by the disease at aparticular time i. Calculation: Number of new cases of disease or injury during specified period DIVIDED BY Time each person was observed, totaled for all persons d. These rates are used to measure disease occurrence and make comparisons between population groups. They are commonly used measures that help our understanding of the distribution of disease in a given population. 3. Understand why incidence data are important for measuring risk. a. Incidence is important for measuring risk because it tells you the rate at which new people are contracting the disease 4. Define, compare, calculate, and interpret Measures of Mortality a. Mortality: a measure of the frequency of occurrence of death in a defined population during a specified interval. Morbidity and mortality measures are often the same mathematically; it's just a matter of what you choose to measure, illness or death. i. Calculation: Deaths occurring during a given time period DIVIDED BY Size of the population among which the deaths occurred TIMES 10n b. Cause-specific mortality rate: The mortality rate from a specified cause for a population. i. Calculation: The number of deaths attributed to a specific cause DIVIDED BY The size of the population at the midpoint of the time period c. Annual mortality rate: The rate of death in a one-year period. i. Calculation: Deaths occurring within the one-year period DIVIDED BY Size of population in which the deaths o