Question

A public health database contains a 2 x 2 contingency table of heart disease and test...

A public health database contains a 2 x 2 contingency table of heart disease and test status.

                                   (Actual Status)

              Test               Heart Disease

              Status         Present          Absent     

          Test Positive        25               14           

    

          Test Negative      15               46           

           _________________________________________

          Total               40               60

4%  

     (a) Find ratio measure of the sensitivity in this study

     TYPE YOUR ANSWER HERE: ____

4%

     (b) Why do we need to know the sensitivity in this study?

     TYPE YOUR ANSWER HERE: ____

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
     A public health database contains a 2 x 2 contingency table of smoking history and...
     A public health database contains a 2 x 2 contingency table of smoking history and heart disease.               Smoking             Heart Disease               History         Present        Absent              _________________________________________           Smoking Status      25                14                   Nonsmoking Status   15                46                       _________________________________________               Total          40                60      Using a chi-square test to answer the following questions: 4%      (a) What is the research hypothesis in this study?      TYPE YOUR ANSWER HERE: ____      2%      (b) If the p value...
Using the following 2x2 table calculate the prevalence of the disease , sensitivity of the test,...
Using the following 2x2 table calculate the prevalence of the disease , sensitivity of the test, specificity of the test , predictive value of a positive test Disease Present Absent Test Result Positive 34 20 Negative 116 9830 Prevalence Sensitivity Specificity Predictivity value of a positive test A. 99.7% B. 31% C. 63% D. 1.5% E. 59% F. 22.6% G. 25%
You will be assessing the appropriateness of a new screening test for Disease X. Assume a...
You will be assessing the appropriateness of a new screening test for Disease X. Assume a population of 1000 people of whom 100 have Disease X and 900 do not have Disease X to answer questions a through i using the following 2x2 table: Disease No Disease Positive screen 80 100 Negative screen 20 800 1.      Calculate the sensitivity. 2.      Interpret your sensitivity calculation and the implications for potential use of this screening test. 3.       Calculate the specificity. 4.      Interpret your specificity calculation and...
1. A public health official in Tennessee wants to know the difference of COVID-19 mortality rate...
1. A public health official in Tennessee wants to know the difference of COVID-19 mortality rate between the States of Tennessee and New York as of April 8, 2020. Of 4,362 confirmed cases in Tennessee, 79 deaths reported with a mortality rate of 1.8% or 0.018 (79/4362). Of 149,401 confirmed cases in New York, 6,268 deaths reported with a mortality rate of 4.2% or 0.042 (6,268 /149,401). Is the COVID-19 mortality rate of Tennessee significantly less than that of New...
Diabetes Screening Shown below are the real-life diagnostic characteristics of a particular diabetes-screening test – a...
Diabetes Screening Shown below are the real-life diagnostic characteristics of a particular diabetes-screening test – a fasting venous glucose measurement – from a hypothetical cross-sectional study population. Calculate the sensitivity, specificity and positive predictive value (PPV) of this screening test and estimate the prevalence of diabetes in the study population. Table: Results of fasting venous glucose screening for diabetes. Diabetes Screening Test Actual diabetes status Total Present Absent Positive (+) True + 67 False + 38 Total + 105 Negative...
A state department of health is considering a public awareness campaign to encourage vaccination. It determines...
A state department of health is considering a public awareness campaign to encourage vaccination. It determines that the cost of this campaign would be $700,000 per year for the next 6 years. It estimates that the campaign would reduce rates of illness and communicable disease. At the end of the first year of the campaign, the resulting savings would be $1,300,000; the savings would decrease by $80,000 each of the following 5 years. Assuming a discounting factor of 4%, compute...
A study was done to investigate whether a relationship existed between HPV (human papillomavirus) status and...
A study was done to investigate whether a relationship existed between HPV (human papillomavirus) status and HIV infection status. HPV status and HIV infection status were obtained for 97 women. Table of hpv by hiv hpv hiv Frequency Expected Row Pct Seropositive/Symptomatic Seropositive/Asymptomatic Seronegative Total Positive 23 12.928 60.53 5 7.4433 13.16 10 17.629 26.32 38 Negative 10 20.072 16.95 14 11.557 23.73 35 27.371 59.32 59 Total 33 19 45 97 Statistic DF Value Prob Chi-Square 2 19.6478 <.0001...
I just need the following questions answers Quantitative Research Designs 101 1. Quantitative research attempts to...
I just need the following questions answers Quantitative Research Designs 101 1. Quantitative research attempts to do which of the following? a. Identify, define and measure factors that contribute to a disorder or disease. b. Examine relationships among factors. c. Evaluate the cost-effectiveness of an intervention. d. All of the above 2. Qualitative and quantitative research designs are appropriate to answer different types of public health questions. Which of the following is NOT an objective of qualitative research? a. To...
The chemical box contains an “unknown” chemical that is a sulfate, carbonate, or phosphate salt. Using...
The chemical box contains an “unknown” chemical that is a sulfate, carbonate, or phosphate salt. Using the procedures learned earlier in this experiment, determine which type of salt is contained in the unknown solution. Remember that the results need to match those from the previous experiments for a positive identification result. Other reactions may happen, but these results do not give a definitive answer with respect to what compound is in the solution. Use a permanent market to label three...
As a part of proposed health care reform, the federal government is encouraging hospitals to use...
As a part of proposed health care reform, the federal government is encouraging hospitals to use new health information technology as a means to reduce health care costs and increase quality of services. You are the CFO of a nonprofit hospital and need to conduct a cost-benefit analysis of the idea to present to the board. Being well trained in economic evaluation, especially cost-benefit analysis, you have happily accepted the challenge of this task. You have collected some relevant information....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT