Exam (elaborations)
Chapter 7 Describing Health Conditions, Understanding and Using Rates
- Course
- Institution
Chapter 7 Describing Health Conditions, Understanding and Using Rates
[Show more]
Seller
Follow
tutorclara
Reviews received
Content preview
Chapter 7 Describing Health Conditions: Understanding andUsing Rates
Origin: Chapter 7- Describing Health Conditions, 1
1. Which is the primary method used to measure the existence of states of health or illness
in a population during a given time period?
A) Rate
B) Ratio
C) Relative risk ratio
D) Sensitivity
Ans: A
Feedback:
Rate is the primary measurement used to describe the occurrence (quantity) of a state of
health in a specific group of people in a given time period. Ratio is a fraction that
represents the relationship between two numbers. Relative risk ratio is the ratio of the
incidence rate in the exposed group to the incidence rate in the nonexposed group.
Sensitivity is the ability of a test to correctly identify people who have a health problem
or the probability of testing positive if the health problem is truly present.
Origin: Chapter 7- Describing Health Conditions, 2
2. Which formula should be used to calculate a rate?
A) Number of true positives
Number of true positives + Number of false negatives
B) Number of true negatives
Number of true negatives + Number of false positives
C) Number of conditions or events within a designated period of time
× Base multiple
Population at risk during the same period of time
,D) Number of deaths from a specific disease
×100
Number of cases of the same disease
Ans: C
Feedback:
Below are the equations for various measures.
Number of conditions or events within a designated period of time
Rate = × Base multipl
Population at risk during the same period of time
Number of true positives
Sensitivity =
Number of true positives + Number of false negatives
Number of true negatives
Specificity =
Number of true negatives + Number of false positives
Number of deaths from a specific disease
Case fatality rate = ×100
Number of cases of the same disease
, Origin: Chapter 7- Describing Health Conditions, 3
3. Which formula should be used to calculate the infant mortality rate?
A) Number of deaths of children <1 year of age in one year
×1,000
Number of live births in the same year
B) Number of fetal deaths plus infant deaths <7 days of age in one year
×1,000
Number of live births plus fetal deaths in the same year
C) Number of deaths of children <28 days of age in one year
×1,000
Number of live births in the same year
D) Number of fetal deaths in one year
×1,000
Number of live births plus fetal deaths in the same year
Ans: A
Feedback:
Below are the equations for various measures.
Number of deaths of children <1 year of age in one year
Infant mortality rate = ×1,000
Number of live births in the same year
Perinatal mortality rate =
Number of fetal deaths plus infant deaths <7 days of age in one year
×1,000
Number of live births plus fetal deaths in the same year
Neonatal mortality rate =
Number of deaths of children <28 days of age in one year
×1,000
Number of live births in the same year
Number of fetal deaths in one year
Fetal mortality rate = ×1,000
Number of live births plus fetal deaths in the same year
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 tutorclara. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
50064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now