Loss of follow-up is a problem in most cohort studies and often introduces bias. It is a situation in which a researcher loses contact with a subject, resulting in missing data. Too many subjects failing follow-up diminish the internal validity of the study.
<h3>What is follow-up loss in cohort studies? </h3>
- Follow-up loss introduces bias (observed deviation of relevant measures from what would have been observed without bias) if there is a difference in the likelihood of loss due to follow-up related to exposure status and outcome.
- In the clinical research trials industry, loss due to follow-up is defined as patients who were actively participating in a clinical research trial at some point but who lost themselves (due to errors in the computer tracking system or due to unavailability).
- In cohort studies: 1) Imaging outcome, is loss of follow-up. 2) These are essentially prospective studies, so confounding factors are not an issue. 3) These studies help examine multiple outcomes from a single, infrequent exposure. 4) These are usually faster and cheaper than case-control studies.
<h3>What are advantage and disadvantages of cohort studies?</h3>
- In general, the main advantage of cohort studies is the ability to study multiple exposures and multiple endpoints in a single cohort. This recording allows you to select index groups, so you can explore rare recordings.
- A major weakness of cohort studies is that this type of study design can be time consuming and expensive for results that are rare or evolve over long periods of time. It's a question of research.
To learn more about cohort study visit:
brainly.com/question/4562396
#SPJ4
Answer:
D) Many faced discrimination.
Explanation:
Answer:
The term is used in describing the amount of control or influence that consumers have on the market is sovereignty
Explanation:
A reasonable view of the choice of using your friend as expert testimony is <u>D. The friend’s </u><u>insights</u> are valuable as peer testimony.
<h3>What is peer testimony?</h3>
Peer testimony is a testimony given by a person without the required specialist expertise in a particular matter.
Peer testimony serves as an assertion made by someone who has experience or knowledge of a particular matter. For example, your friend who has a brother with childhood Type I diabetes.
Thus, a reasonable view of the choice of using your friend as expert testimony is <u>Option D</u>.
Learn more about peer testimony at brainly.com/question/4214423
Brom Bones, <span>who at one point does disguise himself as the Horseman and throws a pumpkin at Ichabod, is killed by the real Horseman halfway in the film. In 1999, a telefilm entitled The Legend of Sleepy Hollow aired on Odyssey starring Brent Carver as Ichabod Crane.</span>
