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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B and c because it divided everybody leaving them weak
In the context of organizational psychology, in this instance, Brian is exhibiting the characteristics of a "<span>transformational leader".
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Transformational leadership is a style of administration where a pioneer works with subordinates to recognize required change, making a dream to direct the change through motivation, and executing the adjustment pair with conferred individuals from a gathering.
Answer:
D. an elderly woman plants a flower garden on the vacant lot next to her house
Explanation:
External benefits refers to the advantage or potential gains one gets by investing or doing an activity or task which is not of any primary benefit to himself or herself. The society or other people can gain benefit from them apart from the person doing the activity.
In the context, a woman who does flower gardening on a vacant land which is next to her house can result an external benefit form the flowers. She can admire the beauty of the flowers and also the other people in the society. However it will not have an internal benefit to the woman.
A lost fingernail may take 6 months to grow back. Avulsion is the term when the fingernails are
injured because of a trauma. After the trauma in the toenail or fingernail, the
nail became dis-colorated after a certain number of days. It will swell also.
