100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
NR503 Epidemiology Final Study Guide (Version 1) / NR 503 Epidemiology Final Study Guide (New 2020) : Population Health, Epidemiology & Statistical Principles: Chamberlain $20.49
Add to cart
NR503 Epidemiology Final Study Guide (Version 1) / NR 503 Epidemiology Final Study Guide (New 2020) : Population Health, Epidemiology & Statistical Principles: Chamberlain
22 views 0 purchase
Course
NR503 (NR503)
Institution
Chamberlain College Of Nursing
NR503 Epidemiology Final Study Guide (Version 1) / NR 503 Epidemiology Final Study Guide : Population Health, Epidemiology & Statistical Principles: Chamberlain
nr503 epidemiology final study guide version 1 nr 503 epidemiology final study guide population health
epidemiology statistical principles chamberlain
Written for
Chamberlain College of Nursing
NR503 (NR503)
All documents for this subject (65)
Seller
Follow
drsmith
Reviews received
Content preview
NR 503 - Study Guide for Final Exam
1. Objectives of epidemiology.2-7
Step 1. Understanding the etiology or cause of a disease (risk factors)
Step 2. Finding out the extent that a disease or health problem affects a community or
population.
Step 3. Determine the natural history or prognosis
Step 4. Evaluate existing and newly developed preventative therapeutic measures and
modes of healthcare delivery
Step 5. Provide the foundation for developing public policy relating to environmental
problems, genetic issues, and other considerations regarding disease prevention and
health promotion.
2. Define, compare, calculate, and interpretMeasures of Morbidity.41.58
a. Incidence rate.41.51
(# of NEW cases of a disease occurring in the population during a specified
period of time / # of persons who are at risk of developing the disease during
that period of time) x 1000 = Incidence rate per 1,000
: the NEW cases of a disease over a period of time.
b. Attack rate.46
- special form of cumulative incidence
- Used for diseases of short observation time period
- Not a true rate because the time dimension is often uncertain (food borne
outbreaks)
= (# of new cases among population during period / population at risk at
beginning of period) x 100 (expressed as %)
c. Prevalence.46
: the EXISTING cases of a disease over a period of time.
(# of cases of a disease present in the population at a specified time / # of
persons in the population at that specified time) x 1,000 = Prevalence per
1,000
3. Understand why incidence data are important for measuring risk.
Measures risk (probability of developing disease)
Useful for investigating determinants of disease (not survival)
To investigate causes of disease
Need to know population ‘at risk’ or ‘person-time’ at risk
4. Define, compare, calculate, and interpret Measures of Mortality
, a. Cause-specific mortality rate.64.65
=(Total number of deaths due to x cause / total population at mid year) x
1,000
=(No.of deaths from leukemia in one year in children younger than 10 years
of age / No.of children in the population younger than 10 years of age at
midyear) x 1,000
b. Annual mortality rate .64
-annual death rate, or mortality rate from all causes.
(total # of deaths from all causes in 1 year / total population at mid year ) x
1,000
c. Case-fatality.65
--what percentage of people who have a certain disease die within a certain
time after their disease was diagnosed?
=(# of deaths due to a certain disease/total # suffering from that disease) x
100 %
-Measure of the severity of the disease
-As therapy improves, case-fatality would be expected to decline.
d. Proportionate mortality.This is Not a rate. 66
-the proportionate mortality from cardiovascular disease in the U.S. in 2010
(percent, %)
-of all deaths in the US, what proportion was caused by cardiovascular
disease?
=( # of deaths from cardiovascular diseases in US in 2010 / total deaths in the
US in 2010) x 100
5. Assess the Validity.89 and Reliability105.110 of Diagnostic and Screening Tests
a. Define, compare and calculate measures of validity, including sensitivity and
specificity.
-Validity of test: its ability to distinguish between who has a disease and who
does not.
-Sensitivity of test is defined as the ability of the test to identify correctly
those who have the disease.
-Specificity of test is defined as the ability of the test to identify correctly
those who do not have the disease.
Have a Disease Do not have
Disease
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller drsmith. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $20.49. You're not tied to anything after your purchase.
