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

Protein requirement in chronic diarrhoea, Q. Protein Requirement in chronic...

Q. Protein Requirement in chronic diarrhoea? Requirements are increased only in chronic diarrhoea because of associated tissue depletion. An additional 10 g of protein may be r

What are three main components of cytoskeletan, What is the cytoskeleton, a...

What is the cytoskeleton, and what are three of its main components? The cytoskeleton is a network of long protein strands located in the cytosol. Three main components are

Describe the factors of biological evolution of humans, Although there are ...

Although there are differences in interpretation of the evidence, it is generally accepted that human biological evolution has not been a linear progression from one species to the

Explain the importance of the auxin, a) How is the milk production regulate...

a) How is the milk production regulated by hormones in human female? Define. b) Explain the importance of the auxin / cytokinin ratio in plant tissue culture.

Animal biodiversity, discuss why obelia is considered to be of special inte...

discuss why obelia is considered to be of special interest in zoology as an animal showing an intermediate grade of organisation

Difference between ectoparasite and endoparasite, Q. What is the difference...

Q. What is the difference between ectoparasite and endoparasite? The Ectoparasites are parasites that explore the external surface of the host (like, for instance, mites that p

Dermatitis, D i se a se s of Skin Der m a t i t i s De...

D i se a se s of Skin Der m a t i t i s Dermatitis is the inflammation of dermis and epidermis resulting in pain on palpation and erythema. E t iolo

Assessment of rheumatic fever, Assessment 1. Assess the past and prese...

Assessment 1. Assess the past and present history of illness, sore throat, rheumatic fever and treatment received previously.  2. Family history of rheumatic fever. 3. S

What are peristaltic movements, What are peristaltic movements? What is the...

What are peristaltic movements? What is their role in human digestion? Peristalsis is the process of synchronized contractions of the muscular wall of the digestive tube. Peris

Explain bleeding on probing, Bleeding on Probing (BOP) BOP when elicite...

Bleeding on Probing (BOP) BOP when elicited (notated in patient record as BOP +) after the insertion of a probe into the sulcus with light pressure i.e. 25 N has been shown to

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