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Flow Diagram

DZ. “fit”. 2x2 Table. Flow Diagram. DZ. DZ. DZ. E. Healthy People. b. a. E. c. d. DZ. -. E. Healthy People. DZ. E. Designs, Diagrams, and Tables. &. Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables. Hypotheses. 1

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Flow Diagram

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  1. DZ “fit” 2x2 Table Flow Diagram DZ DZ DZ E Healthy People b a E c d DZ - E Healthy People DZ E Designs, Diagrams, and Tables & Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  2. Hypotheses 1 How is this disease distributed? 2 Is there an association? Did the exposure and the disease turn up together? 3 Is the association causal? 4 What should be done to prevent the disease? 5 Did the prevention strategy work? Where are we and where are we going? What’s my hypothesis? Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  3. DZ E DZ E - - - - E DZ E DZ Review Controlled Trial +++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++ Cohort Study +++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++ Case-Control Study ++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++ Cross-Sectional Study +++++++++++++++++++++++++++ ++++++++++++++++++++++++ +++++++++++++++++++++++++ +++++++++++++++++++++++ Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  4. DZ DZ E DZ E Healthy People DZ E DZ DZ Random Assignment Healthy People Healthy People DZ DZ E E - - - - DZ E DZ Healthy People DZ DZ E E E E Review Controlled Trial Case-Control Study Cohort Study Cross-Sectional Study Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  5. DZ “fit” 2x2 Table Flow Diagram DZ DZ DZ E Healthy People b a E c d DZ - E Healthy People DZ E Designs, Diagrams, and Tables & Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  6. Designs, Diagrams, and Tables & Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  7. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ Controlled Trial Where do these people “fit” in the 2x2 table? DZ DZ E a E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  8. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ Controlled Trial Where do these people “fit” in the 2x2 table? DZ DZ E b E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  9. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ Controlled Trial Where do these people “fit” in the 2x2 table? DZ DZ E E c 2x2 Table Flow Diagram Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  10. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ Flow Diagram Controlled Trial Where do these people “fit” in the 2x2 table? DZ DZ E E d 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  11. DZ E DZ DZ E DZ Cohort Study Where are these people in the flow diagram? DZ DZ E Healthy People Healthy People E c 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  12. DZ E DZ DZ E DZ Cohort Study Where are these people in the flow diagram? DZ DZ E Healthy People Healthy People a E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  13. DZ E DZ DZ E DZ Cohort Study Where are these people in the flow diagram? DZ DZ E Healthy People Healthy People E d 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  14. DZ E DZ DZ E DZ Cohort Study Where are these people in the flow diagram? DZ DZ E Healthy People Healthy People b E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  15. E DZ E E DZ E Case-Control Study Where do these people go in the 2x2 table? DZ DZ E a E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  16. E DZ E E DZ E Case-Control Study Where do these people go in the 2x2 table? DZ DZ E E c Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  17. E DZ E E DZ E Case-Control Study Where do these people go in the 2x2 table? DZ DZ E b E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  18. E DZ E E DZ E Case-Control Study Where do these people go in the 2x2 table? DZ DZ E E d Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  19. DZ DZ E E Cross-Sectional Study Where do these people go in the 2x2 table? DZ DZ Flow Diagram E a E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  20. DZ DZ E E Cross-Sectional Study Where do these people go in the 2x2 table? DZ DZ Flow Diagram E E c 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  21. DZ DZ E E Cross-Sectional Study Where do these people go in the 2x2 table? DZ DZ Flow Diagram E E d 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  22. DZ DZ E E Cross-Sectional Study Where do these people go in the 2x2 table? DZ DZ Flow Diagram E b E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  23. Assessment Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  24. DZ DZ b a E d c E 1. Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  25. DZ E DZ Random Assignment Healthy People Healthy People DZ b a d c E DZ 2. Where do these people “fit” in the 2x2 table? DZ DZ E E 2x2 Table Flow Diagram Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  26. E DZ E E b a d c DZ E 3. Where do these people “fit” in the 2x2 table? DZ DZ E E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  27. DZ DZ b a E d c E 4. Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  28. DZ E DZ Random Assignment Healthy People Healthy People DZ b a d c E DZ 5. Where do these people “fit” in the 2x2 table? DZ DZ E E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  29. E DZ E E b a d c DZ E 6. Where do these people “fit” in the 2x2 table? DZ DZ E E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  30. DZ DZ b a E d c E 7. Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  31. DZ E DZ Random Assignment Healthy People Healthy People DZ b a d c E DZ 8. Where do these people “fit” in the 2x2 table? DZ DZ E E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  32. E DZ E E b a d c DZ E 9. Where do these people “fit” in the 2x2 table? DZ DZ E E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  33. DZ DZ b a E d c E 10. Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  34. DZ DZ E E 1. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E a E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  35. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ 2. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ E a E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  36. E DZ E E DZ E 3. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ E a E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  37. DZ DZ E E 4. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E b E 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  38. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ 5. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ E b E 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  39. E DZ E E DZ E 6. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ E b E Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  40. DZ DZ E E 7. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E E c 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  41. DZ E DZ Random Assignment Healthy People Healthy People DZ E DZ 8. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ E E c 2x2 Table Flow Diagram Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  42. E DZ E E DZ E 9. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ E E c Flow Diagram 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  43. DZ DZ E E 10. (Answer) Where do these people “fit” in the 2x2 table? DZ DZ Flow Diagram E E d 2x2 Table Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  44. CDC Making Sense There are four basic study designs for testing hypotheses. Does this all make sense to you? Each design has a different plan for assessing exposure and disease. The plan for each design can be understood by: 1) thinking of a train ride from exposure to disease, and 2) constructing a flow diagram. Whatever the study design, the assessment of exposure and disease “fits” into a 2x2 table so that a sample’s exposure and disease can be classified, risks calculated, risks compared, and inferences made. Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

  45. Investigation 2-9 has ended. CDC Designs, Diagrams, and Tables Detectives in the Classroom – Investigation 2-9: Designs, Diagrams, and Tables

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