Then Determine Appropriate Assignment Help: How to Answer This Question
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Original Question
Then determine the appropriate measure of association related to it. Since 2010, researchers have been tracking the health outcomes of 7,000 individuals from 350 families in Charlotte, North Carolina. Participants provided detailed medical and lifestyle histories, underwent a series of physical examinations and laboratory tests at baseline, and participated in follow-up assessments every four years. Annual interviews and health record surveillance monitor the incidence of asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. 1. Identify the study design (2 pts) 2. Justify your choice (4 pts) 3. Determine the appropriate measure of association (2 pts) Researchers conducted a study to evaluate a new medication for managing Type 2 diabetes. A random sample of adults diagnosed with Type 2 diabetes from five major healthcare centers was recruited. Participants were randomly assigned to either the novel drug treatment or the standard treatment (metformin and lifestyle modification). Both groups were followed for five years to assess differences in blood glucose control, diabetes-related complications, and overall health outcomes. 4. Identify the study design (2 pts) 5. Justify your choice (4 pts) 6. Determine the appropriate measure of association (2 pts) Page 2 of 5 Using electronic medical records from a large urban hospital, researchers conducted a study to investigate the association between hypertension and stroke. A total of 450 patients diagnosed with stroke (cases) were matched to 450 patients without stroke (controls) based on sex, age, and history of diabetes. The researchers assessed prior blood pressure levels and medication use to determine whether hypertension was associated with an increased risk of stroke. 7. Identify the study design (2 pts) 8. Justify your choice (4 pts) 9. Determine the appropriate measure of association (2 pts) A research team conducted an online survey to assess caffeine consumption among college students. The survey was sent to every 10th student listed in the university’s student directory. Each participant was asked about their age, gender, race/ethnicity, and caffeine intake (e.g., coffee, tea, or energy drinks) over the past seven days. Approximately 55% of the students completed the survey, and 68% reported consuming at least one caffeinated beverage during that time. 10. Identify the study design (2 pts) 11. Justify your choice (4 pts) 12. Determine the appropriate measure of association (2 pts) Part 2: Case-Control Study Design (20 pts) Review the following research question and consider issues related to the design of a case-control study to test the hypothesis. Answer in complete sentences. Is there an association between drinking raw milk and Listeria infection? 13. How will you define a “case”? Are there any special considerations? (4 pts) 14. Where would you find the cases? (4 pts) Page 3 of 5 15. Describe a suitable control population and where you would find them. (4 pts) 16. What factors/characteristics would you attempt to measure similarly from each study participant? (4 pts) 17.What difficulties might you encounter in measuring these factors/characteristics? (4 pts) Part 3: Cohort Study Design (20 pts) Review the following research question and consider issues related to the design of a cohort study to test the hypothesis. Answer in complete sentences. Does prolonged exposure to pesticides increase the risk of neurological disorders among agricultural workers? 18. How will you define a “cohort”? Are there any special considerations? (4 pts) 19. Where would you find the cohort? (4 pts) 20. How would you measure exposure to radiation? Were would you find this data? (4 pts) 21. How would you measure the outcome of cancer mortality? Where would you find this data? (4 pts) Page 4 of 5 22. Describe how long you would follow-up with the cohort and any difficulties you might encounter. (4 pts) Part 4: Randomized Controlled Trial Study Design (20 pts) Review the following research question and consider issues related to the design of a randomized controlled trial (RCT) to test the hypothesis. Answer in complete sentences. Does a new smoking cessation drug result in higher long-term abstinence rates compared to nicotine patches? 23. Describe the inclusion and exclusion criteria you might use for this research scenario. (4 pts) 24. What is the importance of randomization in an intervention trial? What does it accomplish? (4 pts) 25. How might you implement randomization in this research scenario? (4 pts) 26. To minimize opportunities for bias, how might you implement blinding in this research scenario? (4 pts) 27.What ethical considerations should be taken into account for this RCT? (4 pts) *Worksheet continues on next page* Page 5 of 5 Part 5: Pros and Cons of Case-Control and Cohort Studies (8 pts) Different study designs have particular advantages and disadvantages. Contrast the case-control and cohort study designs (assuming primary data collection) with respect to the following factors. Answers can be short statements. Factor Case-Control Cohort 28. Cost (2 pts) 29. Time required for completion of study (2 pts) 30. Design issues (recruitment and selection of participants) (2 pts) 31. Difficulties in obtaining information (measurement and follow-up) (2 pts)
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