Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Epidem 1

Epidemiology and Ethics 1: Research studies

QuestionAnswer
What is the MC foodborn bacterial GI tract infection in developed countries? Salmonella
What is the tx for a rectal fistula? Fistulotomy
In what disease would you see a Hampton's hump on x-ray? PE
Identifies 2 groups: diseased and halthy. Retrospectively compares them. Weakened by recall and selection biases. Case control study
Seeks to estmate disease prevalence and exposure across a population. Cross-sectional study
Examines a collection of studies on a given subject. Meta-analysis
Prospective blinded study involving placebos, existing therapies, and experimental interventions RCT
Focuses on one group with a shared exposure or disease and either propsectively or retrospectively compares them Cohort
Examines a collection of cases to seek insight into the disease of interest. Useful in rare diseases. Case series
Memory errors produce incorrect data. Recall bias
Subject awareness of being studied alters their answers and behavior Observational bias
Certain medical studies attract subjects with particular medical histories rather than the general population self-selection bias
Studies that show a difference are preferably published and then later included in meta-analysis rather than studies that support the null hypothesis publication bias
screening tests designed to detect asymptomatic disease may miss rapidly-progressive dz b/c the interval btwn successive screenings only detects slowly progressive ones. length bias
Screening test may allow earlier diagnosis of dz but does not translate into actual length of survival lead-time bias
What does an odds ratio estimate in the case of a dz with low prevalance? RR
Created by: sarah3148
Popular USMLE sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards