5 Written questions
5 Matching questions
- Gold Standard
- Approximately how many people live in AL?
- Types of Prevention:
- Absolute Risk Reduction
- Relative Risk Reduction
- a Term describing the best way to tell whether or not a disease or condition is truly present or not, i.e. using a throat culture to confirm clinical impression of strep throat. "Throat culture in this case would be a -----." p. 36 (There should be the understanding that no test is perfect.)
- b Definition: Preventing the initial development of a disease
- c How much of the risk is reduced in the experimental group compared with the control group. RRR=ARR/(rate of control group)
- d ...4,700,000
- e ARR (same as Attributable Risk), It is the absolute value of the control group event rate - the experimental group event rate.
5 Multiple choice questions
- "degree to which the results of an observation hold true in other settings" "generalizability" "Assuming that the results of a study are true, do they apply to my patients as well?" p. 10
- As a fraction of the actual distribution (Page 29)
- 11,700. Of these 11,700 known to have HIV, ~4,500 have AIDS. (This number with AIDS will probably not be asked since the term AIDS is somewhat subjective. The viral load limit that a person must have to be considered suffering from AIDS has been lowered in recent years.)
- Def: Early detection of existing disease to reduce severity and complications
Ex. Screening for cancer
- According to answers.com, a case control study is a usually retrospective study in which individuals with and without a condition are examined and past medical history etc. is statistically analyzed for correlation.
5 True/False questions
Relative Risk → 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))
Pretest Probability → The probability of disease after the test result is known.
Case Fatality Rate → Proportion of people with a disease who have a positive test for the disease = true positives/(true positives + false negatives) p. 39
Sensitivity → Proportion of people without the disease who have a negative test = true negatives/ (true negatives + false positives) p. 39
Baye's Theorem of Conditional Probabilities → The prevalence of disease in a specified group of subjects.