epidemiology, Biology

Assignment Help:
9. A simple and inexpensive screening method has been developed to identify individuals with HIV infection at routine medical check-ups. To study the sensitivity and specificity, the method was tested on 1860 persons who underwent a simultaneous and thorough clinical examination that was considered to give an accurate diagnosis.

The results were as follows:
The clinical test identified 1160 individuals as having the disease, whereas the screening method identified 480 as being positive for the disease. The screening method correctly identified 160 among those with clinical disease.

Calculate the sensitivity of the screening method and specificity of the screening method.

Related Discussions:- epidemiology

Explain secretion of parathormone and calcium blood level, What is the rela...

What is the relation between secretion of parathormone and the calcium blood level? The parathormone enhances the calcium blood level as it stimulates the resorption (remodelat

Evaluate the texture of various foods, Q. Evaluate the texture of various f...

Q. Evaluate the texture of various foods? A number of instruments are available to evaluate the texture of various foods. Brief discussions on these instruments follow. Cons

What is nuclear pollution, What is nuclear pollution? Nuclear pollution...

What is nuclear pollution? Nuclear pollution having of radiations emitted from atomic nuclei, these radiations is highly injurious to living beings. They can be originated from

What are the cells that produce the myelin sheath, Q. What are the cells th...

Q. What are the cells that produce the myelin sheath? Of which substance is the myelin sheath formed? In the central nervous system (CNS) the myelin sheath is made by appositio

Define the role of vitamin a in immune response, Define the Role of Vitamin...

Define the Role of Vitamin A in immune response? Vitamins A is essential to normal immune function and- regulation. As discussed above, during vitamin A deficiency the goblet c

Define about the polyphenols, Define about the Polyphenols? We now come...

Define about the Polyphenols? We now come to a group of compounds, which were until recently considered to adversely influence nutrient absorption or giving colour to foods e.g

Explain some functions of riboflavin, Explain Some Functions of Riboflavin?...

Explain Some Functions of Riboflavin? Protective role: Riboflavin protects the octodermal tissues and prevents lesions  of the skin, eye and nervous system. Riboflavin amelior

Parthenocarpy, Parthenocarpy It is generally observed that the fruit d...

Parthenocarpy It is generally observed that the fruit develops after fertilization and it has fertile seeds inside it. However, this is not always so. Fruits of certain variet

Define terpene alcohols - non glyceride fractions, Define Terpene Alcohols ...

Define Terpene Alcohols - non glyceride fractions? Partly free, partly esterified e.g. ferulic acid; these are found in significant amounts in rice bran oil, wheal germ oil, so

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd