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5 Written questions

5 Matching questions

  1. Pretest Probability
  2. Approximately how many people does smoking kill in AL every year?
  3. Specificity
  4. Incidence
  5. Regression to the Mean
  1. a "Patients selected because they represent an extreme value in a distribution can be expected, on average, to have less extreme values on subsequent measurements..This occurs for purely statistical reasons, not because the patients have necessarily improved." This is the reasoning behind repeating lab tests: "Subsequent values are likely to be more accurate estimates of the true value." p. 32
  2. b The fraction or proportion of a group of people initially free of the outcome of interest that develops the condition over a given period of time
  3. c Proportion of people without the disease who have a negative test = true negatives/ (true negatives + false positives) p. 39
  4. d The prevalence of disease in a specified group of subjects.
  5. e 7,000

5 Multiple choice questions

  1. A general term for measures of association calculated from data in a 2x2 table. = Risk of disease in exposed (a/(a+b)) / Risk of disease in unexposed (c/(c+d))
  2. "degree to which the results of a study are correct for the sample of patients being studied...determined by how well the design, data collection, and analyses are carried out and..threatened by..biases and random variation" p. 10
  3. ARR (same as Attributable Risk), It is the absolute value of the control group event rate - the experimental group event rate.
  4. A population group unified by a specific common characteristic, such as age, and subsequently treated as a statistical unit.
  5. "the study of disease occurrence in human populations" p. 3

5 True/False questions

  1. Case Fatality RateProportion of patients who die of a disease

          

  2. SensitivityProportion of people with a disease who have a positive test for the disease = true positives/(true positives + false negatives) p. 39

          

  3. Ecology of Medicine(Dr. Wheat) author? journal?....i think...Kerr White New England Journal of Medicine, Nov. 2, 1961 "Ecology of Medical Care"

          

  4. Posttest ProbabilityThe probability of disease after the test result is known.

          

  5. PPVProbability of disease in a patient with a positive test result PV+=true positive/(true positive + false positive) p. 39

          

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