Answer:
A major advantage of cohort studies over case-control studies with respect to the role of a suspected factor in the etiology of a disease is that they permit direct estimation of risk of disease in those exposed to the suspected factor.
Explanation:
The major advantage of cohort studies over case control studies are :
1.It is suited for rare exposures since starting with exposure status.
2.Allows for studying several outcomes.
3.Exposure status easier to ascertain since starting point of the study.
4.Allows computation of risk and rates.
5.Allows studying natural history of disease, easier to show that cause precedes effect.
6.Easiness to find a reference group
, usually not difficult to identify an unexposed population.
7.Sample size taken is large.
8.Concept
s are easy to understand.
Answer: Uh...
Explanation: Please give more info
Answer:
Melatonin is released by the pineal gland, that is hormones or neurotransmitter which is related to the sleep. It is influence the sleep wake cycle. Where as melanin is pigment that naturally colors skin or the hair. More the melanin more the darker the skin or hair.
Melatonin regulates changing in pigmentation by association of melanin into the melanocytes within the skin, leads to the skin to color change. This relation is is also accountable for the yellowish skin color in elderly people and people with insomnia.
A client taking warfarin after open heart surgery reports pain in both knees. Based on the effects of the medications and the report of pain, bleeding must be suspected as the cause of the pain by the nurse.
Open-heart surgery is any type of surgery in which an incision is made in the chest to operate on the heart muscle, valves, or arteries.
Open-heart surgery may be performed to perform CABG. People with coronary artery disease may need coronary artery bypass graft surgery.
Open-heart surgery is nowadays called traditional heart surgery. Today, many new heart surgeries can be performed with only small incisions rather than wide openings. Therefore, the term "open-heart surgery" is misleading.
Warfarin, sold under brand names such as Coumadin, is a drug used as an anticoagulant.
It is widely used to prevent blood clots such as deep vein thrombosis and pulmonary embolism, and to prevent atrial fibrillation, valvular heart disease, and stroke in people with artificial heart valves.
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Before stomach cancer surgery, chemotherapy may be administered. This is referred to as neoadjuvant therapy.
<h3>What is the most successful treatment for gastric cancer?</h3>
Rarely is surgery done, and chemotherapy is typically the main form of treatment. The use of palliative chemotherapy for stomach cancer has been shown in studies to increase both the length and quality of life.
Chemotherapy is the usual course of treatment for stage IV stomach cancer, although prognoses are still dismal. Uncertainty exists over the efficacy of induction chemotherapy followed by surgery in certain individuals who had a satisfactory response to chemotherapy.
The percentage of persons with the same type and stage of cancer who are still alive five years (or more) after their diagnosis can be determined by looking at survival rates.
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