https://www.mediafire.com/file/bzy9m1g9o4lmbu0/pg303.docx/file Week Three Assignment[WLOs: 3, 4, 5] [CLOs: 1, 2, 3, 4] “A case-control study is a type of analytic study “of persons with the disease

https://www.mediafire.com/file/bzy9m1g9o4lmbu0/pg303.docx/file

Week Three Assignment[WLOs: 3, 4, 5] [CLOs: 1, 2, 3, 4]

“A case-control study is a type of analytic study “of persons with the disease (or another outcome variable) of interest and a suitable control group of persons without the disease (comparison group, reference group)” (Friis & Sellers, 2014, pg 303).

In your Week Three assignment, please answer the following questions:

• Define the term case-control study, describing how cases and controls are selected. Compare and contrast case-cross control studies with respect to their specific applications. Using the textbook, list some examples of case-control and cross-sectional studies.
• Describe the advantages and disadvantages of each of the following types of controls in a case-control study:
  • Population-based
  • Hospital cases
  • Relatives
• The association between job-related exposure to welding fumes and chronic obstructive pulmonary disease (COPD) was explored in a case-control study. The following data were reported for 399 COPD patients: 37 currently employed as welders; the remainder had no occupational exposure. Among 800 controls, 48 were employed as welders. Set up a 2 by 2 table and calculate the OR (odds ratio) between welding and COPD.
• Why would you exclude women who cannot develop the disease as controls in a case-control study of gynecologic cancer?
• The following ORs are reported for several hypothetical examples. Give your interpretation of the results, assuming all results are statistically significant unless otherwise specified.
  • OR (low-fat diet and colon cancer) + 0.6
  • OR (aerobic exercise and dental caries) + 1 (not significant)
  • OR (exposure to side-stream cigarette smoke and lung cancer) + 1.3
  • OR (infectious disease of the pelvis and ectopic [tubal] pregnancy) + 3.0
• A random-digit dialed survey conducted in the City of Long Beach, California, reported that a greater proportion of nonsmokers endorsed a ban on smoking in alcohol-serving establishments than did smokers. What type of study design was this?
• An abrupt drop in mortality due to a specific cause is observed from one year to the next. Identify at least three possible reasons for such a change.

The Week Three Assignment must

• Be three to five double-spaced pages in length (not including title and references pages) and formatted according to APA styleLinks to an external site. as outlined in the UAGC Writing CenterLinks to an external site.. The length of your response should be sufficient to answer each question fully
• Include a separate title pageLinks to an external site. with the following:
  • Title of paper
  • Student’s name
  • Course name and number
  • Instructor’s name
  • Date submitted

Carefully review the Grading RubricLinks to an external site. for the criteria that will be used to evaluate your assignment.