I believe it is D, all of the above.
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.
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<h2>
The most notable New South initiative was the introduction of textile mills in the South for a modern economy grounded in factories.</h2>
Explanation: In south, slavery and the plantation methods took the place of sharecropping and tenant farming system in the South. The labor had to share a portion of the grown crops with the landlord in order to pay for renting the land.
Under the sharecropping system, the landlord supplied the capital to buy the seed and equipment where the labor were supplied by shareholder.
In other tenancy farming arrangements the laborer took responsibility for purchasing seed and equipment.
The system did not allow the sharecropper to get ahead. The sharecroppers would not get rid of debt and could not leave. Slavery is the best word that describes Sharecropping.
"SNCC" played a major role in the sit-ins and freedom rides, a leading role in the 1963 March on Washington, Mississippi freedom summer, and the Mississippi freedom Democratic Party over the years . Hope I helped !
Answer:
I'm not sure what you mean can you explain
Explanation:
