Class Notes (891,631)
CA (533,272)
Brock U (12,386)
HLSC (928)
HLSC 4P99 (8)
Lecture 3

CHSC 4P99 Lecture 3: Diagnosis II.pdf

2 Pages

Health Sciences
Course Code
Brent Faught

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California
2 wrong on quiz Diagnosis II January-27-15 1:53 PM The following questions are on the midterm Positive Likelihood Ratios • The likelihood that a person with the disease will have a positiveresult relative to someone who does not have the disease • Are treated like odds ratio • P(T+|D+)/P(T+|D-) • Sensitivity/ false positive rate ○ People who have the disease that test positive to the people who tested positive that do not have the disease • Exam: sensitivity, positive predictive value, positive likelihood ratio Negative Likelihood Ratio • P(T-|D+)/P(T-|D-) • False negative rate/specificity • 1-sensitivity/specificity • The likelihood that a person with a disease will have a negative test result relative to someone who does not have the disease • Exam: false negative rate and negative likelihood ratio Problem Set: A patient with anemia presents a serum ferritin of 60 mmol/L. Below is a summary result of serum ferritin as a diagnostic test for iron deficiency anemia Serum ferratin D+ D- <65 mmol/L 731 270 >65 mmol/L 78 1500 Interpreting Likelihood Ratio Likelihood Ratio Interpretation > 10 Strong evidence to rule in disease 0.5-2 No significantchange in the likelihoodof the disease < 0.1 Strong evidence to rule out disease • Both play off one another, when one is high the other is low Diagnostic Accuracy • Overall accuracy • Being able to identify the true positives and negatives • (A+D)/All • What is
More Less
Unlock Document
Subscribers Only

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
Subscribers Only
You're Reading a Preview

Unlock to view full version

Unlock Document
Subscribers Only

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.