Question

In: Statistics and Probability

10. In a hypothetical study, 1,000 patients attending an outpatient clinic were tested for diabetes using...

10. In a hypothetical study, 1,000 patients attending an outpatient clinic were tested for diabetes using the following two tests: fasting blood sugar (FBS) and glucose tolerance test (GTT). The 110 patients with a positive GTT were classified as true cases of diabetes. Of the 140 patients with a positive FBS test (FBS>= 6mmol/liter)—the screening test in this context, 106 were true cases of diabetes (i.e., 106 had a positive GTT). What is the prevalence of ‘true’ cases of diabetes in this study (to one decimal place)? (1 mark)

10b. Construct a clearly labelled 2x2 table for these data.

10c. What is the sensitivity of the FBS screening test in this study (to one decimal place)? (1 mark)

10d. What is the specificity of the FBS screening test in this study (to one decimal place)? (1 mark)

10e. What is the Positive Predictive Value (PPV) of the FBS screening test in this study (to one decimal place)? (1 mark)

10f. What is the Negative Predictive Value (NPV) of the FBS screening test in this study (to one decimal place)? (1 mark)

Expert Solution

10a. There are 106 true cases of diabetes in this study

10b. 2x2 table for these data is :

Test results	Diabetes (GTT)
Positive	Negative	Total
Positive	106	34	140
Negative	4	856	860
Total	110	900	1000

10c. sensitivity of the FBS screening test in this study is 96.4 and is computed based on below formula

10d. specificity of the FBS screening test in this study is 95.1 and is computed based on below formula

10e.Positive Predictive Value (PPV) of the FBS screening test in this study is 75.7 and is computed based on below formula

10f.Negative Predictive Value (NPV) of the FBS screening test in this study is 99.8 and is computed based on below formula

orchestra answered 2 years ago

Offering Support You are volunteering in an outpatient clinic in which patients come to receive their...

Offering Support You are volunteering in an outpatient clinic in which patients come to receive their chemotherapy regimen. Your father died from cancer recently and you feel called to help others going through similar situations. You know what caused him the most discomfort and what was done to make him more comfortable. Mostly, you want you want offer a caring support system for those in need. You are not a health care provider so will not be providing medical advice....

You are the nurse manager of an outpatient medical clinic. Your patients are diagnosed with heart...

You are the nurse manager of an outpatient medical clinic. Your patients are diagnosed with heart failure. You have noticed that recently, patients have seemed unhappy with the care they receive in your office. You want to design a quality improvement project to increase patient satisfaction with their office visit. You do not know specifically why patients are unhappy. You will create a plan to gather information to help you understand why patients are unhappy with their care. Please do...

A clinic tests patients for the novel Zombie virus. A patient is likely to be tested...

A clinic tests patients for the novel Zombie virus. A patient is likely to be tested positive with probability 0.25. If each patient testing is independent, answer the questions below: 1. What is the probability that the 6th patient is tested positive? 2. What is the probability that the 6th patient is the first one to be tested positive? Use an appropriate random variable family and the provide a PMF.

One of the attending Physicians in your clinic is known for prescribing broad-spectrum antibiotics for patients....

One of the attending Physicians in your clinic is known for prescribing broad-spectrum antibiotics for patients. What is wrong with this approach and what would be a better way to prescribe antibiotics.

Gary is a 62-year-old man with diabetes, diagnosed 3 years ago, who presents to the outpatient diabetes clinic for a routine preventive checkup.

Lab AssignmentGary is a 62-year-old man with diabetes, diagnosed 3 years ago, who presents to the outpatient diabetes clinic for a routine preventive checkup.Subjective DataComplains of occasional dizziness when rising in morningFollows 1,600-calorie diabetic dietMarried with two grown childrenRetired construction workerGoes to the gym 3 times a weekObjective DataVital signs: T 37 P 118 R 18 BP 120/68Glucose reading: 96Weight: 165HT: 5 feet. 8 inchesQuestionsWhat type of assessment should the nurse perform on this patient? Explain your answer. (5 points)What...

A February study of about 1,000 patients in Wuhan, China, who were hospitalized with suspected coronavirus...

A February study of about 1,000 patients in Wuhan, China, who were hospitalized with suspected coronavirus there, where the pandemic began, found that about 60% tested positive using lab tests similar to those available in the U.S. But, almost 90% showed tell-tale signs of the virus in CT scans of their chests, the article, published in the journal Radiology, found, suggesting many patients in the group were testing negative despite active coronavirus infections.” Here, the population is “patients hospitalized for...

The Diabetes Control and Complications Trial followed diabetes patients diagnosed with retinopathy before joining the study....

The Diabetes Control and Complications Trial followed diabetes patients diagnosed with retinopathy before joining the study. They were randomly assigned to one of two treatments and monitored for 6 years. The study found that 121 of the 344 patients assigned to the conventional treatment showed a sustained progression of their original retinopathy. In contrast, only 62 of the 376 patients assigned to the intensive treatment had sustained retinopathy progression. Find a point estimate of the difference between the proportion of...

endocrine case study 3 CJ You are working in an outpatient clinic when a mother brings...

endocrine case study 3 CJ You are working in an outpatient clinic when a mother brings in her 20-year-old daughter, C.J., who has type 1 diabetes mellitus (DM) and has just returned from a trip to Mexico. She has had a 3-day fever and diarrhea with nausea and vomiting. She has been unable to eat and has tolerated only sips of fluid. Because she was unable to eat, she did not take her insulin as directed. You note C.J. is...

In a clinic, the systolic blood pressures in mmHg of a random sample of 10 patients...

In a clinic, the systolic blood pressures in mmHg of a random sample of 10 patients with a certain metabolic disorder were collected. Assume blood pressure is normally-distributed in the population. The mean of this sample was 103.2 mmHg with a (sample) standard deviation of 15.0 mmHg. Test the hypothesis that the mean blood pressure of this sample of patients differs from the known population mean sysolic blood pressure of 121.2 mmHg. Show your working including null hypothesis, alternative hypothesis,...

Community health workers were conducting a screening test for diabetes. People who tested positive on the...

Community health workers were conducting a screening test for diabetes. People who tested positive on the screening test were referred for follow-up testing to confirm if they had diabetes. There were 300 people who tested positive during the screening in the community. Thirty of these people were later found to not have diabetes. There were 500 people who tested negative during the screening in the community. The community health workers later found out that 20 of the people who tested...