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

What is the phenomenon of apical dominance in plants, What is the phenomeno...

What is the phenomenon of apical dominance in plants? How can it be artificially eliminated? Apical dominance is the phenomenon by which high (over the positive range limit) au

Define the term - soil heterogeneity, Define the term - soil heterogeneity ...

Define the term - soil heterogeneity The ratings seem rather arbitrary and empirical but are meant to get a reasonable yield. Outputs for different doses of fertilizers are obt

Chemical properties of fatty acids, Chemical Properties of Fatty Acids ...

Chemical Properties of Fatty Acids Esterification Like any other organic acid,  fatty acids also form esters with  various alcohols. An alcohol such as glycerol is reacted

Interpretation of blood or serum nutrient value in pregnancy, Define Interp...

Define Interpretation of blood or serum nutrient values in pregnancy? Interpretation of blood/serum nutrient values in pregnancy is therefore complex compared to the non-pregn

Green leaves give off oxygen in sunlight, Green leaves give off oxygen in s...

Green leaves give off oxygen in sunlight Place some water weed under a funnel in a beaker of water reverse a test tube full of water over the tube of the funnel. Leave the appa

Name chemical elements that form living biological matter, What are the che...

What are the chemical elements that form most of living biological matter? The elements are:- a)  oxygen (O), b)  carbon (C), c)  hydrogen (H) and d) Nitrogen (N).

Effects of solid waste pollution, The improper handling and transfer of the...

The improper handling and transfer of the solid wastes results in various health and environmental hazards, such as: 1.      Spoilage of landscape: Municipal wastes heap up o

Phylum protozoa, Classification of the phylum protozoa

Classification of the phylum protozoa

Define the xtensor motor neurons, Which of the following occur in response ...

Which of the following occur in response to an increase in the length of the right knee extensors in response to a quick tap applied to the right patellar tendon?  An increase in t

Fowl spirochaetosis, Fowl spirochaetosis The causal agent Borrelia anse...

Fowl spirochaetosis The causal agent Borrelia anserina is a spiral-shaped organism about 8-30 um in length but commonly 14-15 um long and 0-3 um wide. The organisms are activel

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