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NR503 Epidemiology Final Study Guide (Version 2) / NR 503 Epidemiology Final Study Guide (New 2020): Population Health, Epidemiology & Statistical Principles: Chamberlain $20.49
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NR503 Epidemiology Final Study Guide (Version 2) / NR 503 Epidemiology Final Study Guide (New 2020): Population Health, Epidemiology & Statistical Principles: Chamberlain
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Course
NR503 (NR503)
Institution
Chamberlain College Of Nursing
NR503 Epidemiology Final Study Guide (Version 2) / NR 503 Epidemiology Final Study Guide: Population Health, Epidemiology & Statistical Principles: Chamberlain
nr503 epidemiology final study guide version 2 nr 503 epidemiology final study guide population health
epidemiology statistical principles chamberlain
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NR 503 Final Exam Study Guide
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 newly developed preventative therapeutic measures and
modes of healthcare delivery
2. Define, compare, calculate, and interpretMeasures 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 free
of 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 a particular
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 periodDIVIDED 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 occured
d. Case-fatality: the proportion of deaths within a designated population of "cases"
(people with a medical condition) over the course of the disease
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