5 Written questions
5 Matching questions
- Number of People Living in the US with HIV.
- Types of Prevention:
- Ecology of Medicine
- Baye's Theorem of Conditional Probabilities
- a The more sensitive a test is, the better will be its NPV. The more specific a test it, the better will be its PPV.
- b 500,000-1,000,000
- c Definition: Preventing the initial development of a disease
- d the proportion of persons in a defined population at a given point in time having the condition in question
- e (Dr. Wheat) author? journal?....i think...Kerr White New England Journal of Medicine, Nov. 2, 1961 "Ecology of Medical Care"
5 Multiple choice questions
- a process at any stage of inference tending to produce results that depart systematically from true values.
- 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))
- "purported cause or predictor variables" p. 5
- Did study of cholera
- The probability of disease after the test result is known.
5 True/False questions
Number of People Known to be Living in Alabama with HIV → 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.)
Attributable Risk → The probability of an event in a population under study. #new cases over a given period of time / # people in the group
External Validity → "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
Gold Standard → 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.)
Confounders → Patient characteristics that may affect the results a study it is trying to measure. They can decrease the validity of a study.