1 / 14

HSCI 330

HSCI 330. Exploratory Strategies in Epidemiology. Week 1 – Lecture Goals Introduce instructor Overview of course Introduction of WebCT site Review syllabus (Register i>Clickers) Week 1 learning objectives. Broad issues in epidemiological analysis to be covered in HSCI 330.

amil
Download Presentation

HSCI 330

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HSCI 330 Exploratory Strategies in Epidemiology

  2. Week 1 – Lecture Goals Introduce instructor Overview of course Introduction of WebCT site Review syllabus (Register i>Clickers) Week 1 learning objectives

  3. Broad issues in epidemiological analysis to be covered in HSCI 330 What is the study question? How should the study variables be measured? How should the study be designed? What measures of disease frequency and effect should be used? What kinds of bias are likely?

  4. Learning objective 2. In research synopsis or real research paper, describe: E – Exposure Variable D – Disease Variable C – Control Variable

  5. Learning objective 2. In research synopsis or real research paper, describe: E – Exposure Variable (Determinant) D – Disease Variable (Outcome) C – Control Variable (Choose variables that are known determinants of the outcome.)

  6. E=0 E=1 Swam Did not swim D=0, No illness D=1, Illness

  7. E=0 E=1 Swam Did not swim D=0, No illness D=1, Illness C=1, Old age

  8. Control variables: Choose control variables that are known determinants of the outcome (D).

  9. E=0 E=1 E=2 Swam <= 2 hours Swam > 2 hours Did not swim D=0, No illness D=1, Illness

  10. Continuous versus categorical variables Categorical: Didn’t swim, swam<=2hrs, swam>2hrs Continuous: Time spent swimming (minutes) Examples: 0.0 minutes, 134.3 minutes.

  11. i>Clicker QuickCheck In the Sydney Beach Users study, exposure was alternatively defined by distinguishing those who swam in polluted water from those who swam in non-polluted water and from those who did not swim at all. Based on this scenario, fill in the missing information in the following statement: The exposure variable is a _____ variable. Continuous Categorical I don’t know

  12. i>Clicker QuickCheck In the Sydney Beach Users study, exposure was alternatively defined by distinguishing those who swam in polluted water from those who swam in non-polluted water and from those who did not swim at all. Based on this scenario, fill in the missing information in the following statement: 2. The exposure variable has _____ categories. 2 3 4 5 I don’t know

  13. i>Clicker QuickCheck In the Sydney Beach Users study, exposure was alternatively defined by distinguishing those who swam in polluted water from those who swam in non-polluted water and from those who did not swim at all. Based on this scenario, fill in the missing information in the following statement: 3. The exposure variable has 3 categories, on of which is _____. did not swim polluted water swam water not polluted I don’t know

  14. i>Clicker QuickCheck In the Sydney Beach Users study, the illness outcome was whether or not an acute infectious illness developed 1 week after swimming at the beach. Also, in addition to age, another control variable was whether or not a study subject swam on days other than the day he or she was interviewed. Which of the following choices is not a control variable: age swimming status on other days swimming status on day of interview I don’t know

More Related