Healthcare Statistics problems

I’m studying for my Statistics class and don’t understand how to answer this. Can you help me study?

Struggling to find relevant content or pressed for time? – Don’t worry, we have a team of professionals to help you on
Healthcare Statistics problems
Get a 15% Discount on this Paper
Order Now

Problem 1: The Medicare population is comprised of individuals with many health care needs, primarily because of their age. Cite barriers to obtaining measurements of health in this population and proposed methods for ensuring the quality of data collected.


Problem 2. A physical examination an audiometric test were given to 500 individuals with suspected hearing problems, of whom 300 were actually found to have hearing issues. The results of the examinations are presented in the following tables:

Physical examination results

Hearing problems

Result

Present

Absent

Positive

240

40

Negative

60

160

Audiometric Test results

Hearing problems

Result

Present

Absent

Positive

270

60

Negative

30

140

  • Compute the sensitivity and specificity of the findings shown for the physical examination and audiometric test. What type of questions would specify and sensitive address?
  • Compute the positive and negative predictive values of the findings shown for the physical examination and audiometric test. What type of questions would positive and negative predictive values address?
  • Compared with the physical examination, how would you characterize the audiometric test in terms of its specificity and sensitivity?
  • Compared with the physical examination, how would you characterize the audiometric test in terms of its positive and negative predictive values?

Problem 3. Two physicians were asked to classify 100 chest x-rays as abnormal or normal independently. The comparison of their classification is shown in the following table:

Physician 2

Total

Physician 1

Abnormal

Normal

Abnormal

40

20

60

Normal

10

30

40

Total

50

50

100

  • Calculate the overall percent agreement between the two physicians.
  • Would you characterize the value of kappa as poor, good or excellent?

Problem 4. Regression analysis in a research study

Using the following study entitled “Correlates of recovery among older adults after major abdominal surgery” by Zalon, M.L. (2004) answer the following:

  • What is the purpose of this study and how large is the sample size?
  • Identify the dependent and independent variables.
  • What statistical methods did the authors use to analyze the data and why?
  • What was the percentage of variance explained by the regression analysis for functional status at 3 months?
  • Discuss the multiple regression analysis results for functional status. What do these results indicate for practice?

Problem 5: Multiple Linear Regression

Suppose that a health researcher is interested in determining whether the distance between the patient’s residence and source of care, and # of disability days significantly predict the number of visits at a local hospital.

Visits

Distance

Disability days

7

1

8

7

1

9

2

10

1

4

4

3

5

2

5

3

9

2

2

10

1

9

2

10

6

3

7

2

11

2

4

2

3

7

2

8

3

14

2

2

16

1

8

2

9

4

4

2

6

2

5

  • Determine the multiple regression equation for the data and interpret the regression coefficients.
  • Provide an interpretation of the coefficient of multiple determination, R2.
  • At the 5% significance level, determine if # of disability days and distance between patient’s residence and source of care significantly predict the number of visits.

Calculate the price
Make an order in advance and get the best price
Pages (550 words)
$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
Sign up, place your order, and leave the rest to our professional paper writers in less than 2 minutes.
step 1
Upload assignment instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
s
Get personalized services with MyCoursebay
One writer for all your papers
You can select one writer for all your papers. This option enhances the consistency in the quality of your assignments. Select your preferred writer from the list of writers who have handledf your previous assignments
Same paper from different writers
Are you ordering the same assignment for a friend? You can get the same paper from different writers. The goal is to produce 100% unique and original papers
Copy of sources used
Our homework writers will provide you with copies of sources used on your request. Just add the option when plaing your order
What our partners say about us
We appreciate every review and are always looking for ways to grow. See what other students think about our do my paper service.
Other
Excellent like always
Customer 452813, January 5th, 2025
Criminal Justice
Impressive! Will be using the service again.
Customer 452485, December 5th, 2021
Other
GOOD
Customer 452813, July 5th, 2022
Other
Excellent work, delivered ahead of schedule
Customer 452467, January 19th, 2024
Other
GOOD
Customer 452813, July 5th, 2022
Social Work and Human Services
Great Job!
Customer 452587, October 27th, 2021
Human Resources Management (HRM)
Thanks for the revision. Your support is greatly appreciated.
Customer 452701, August 27th, 2023
Nursing
Great Work!
Customer 452453, April 26th, 2023
Philosophy
i got the paper a bit late but it is good quality will for sure come back and use this website.
Customer 452611, September 9th, 2021
Social Work and Human Services
Great Work!
Customer 452587, November 2nd, 2021
Nursing
Fantastic work on this project as usual.
Customer 452707, July 5th, 2022
Nursing
They research and provide the best and up-to-date information..
Customer 452707, June 27th, 2023
OUR GIFT TO YOU
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat

Good News ! We now help with PROCTORED EXAM. Chat with a support agent for more information