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16 Cards in this Set
- Front
- Back
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Epidimeology
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The study of the distribution & determinants of health related matters or events in specified populations & the application of this study to the control of health problems.
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7 uses of epidemeology
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-Study history of health
-Diagnose -Study: working of health services -Individual risk from group experience. -Identify syndromes -Clinical picture of disease & describe natural history. -Seach for causes of health & disease. |
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Distribution
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Who, where, when
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Descriptive Epi
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Picture, charts.
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Cross Sectional
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Provide frequency of existing cases of a disease in a population.
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Ecologic Studies
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Use of aggregate or pop data not individual health data.
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Case Controlled studies
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Odds ratio, collected on exposures or characteristics of interest.
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Cohort studie
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Prospective/retrospective
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Experimental studies
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Clinical/community trials
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Levels of prevention
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Primary: Health promotion & protection
Secondary: Screening is most common form Tertiary: Limitation of disease & disability rehab. |
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Reliability
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To be effective, a test must be reliable. (consistent & repeatable).
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Validity
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To be effective, a test must be valid
(measures what it purports to measure) |
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Specificity
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To be effective, a test must adentify those without the condition or trait.
(true negatives) |
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Prevalence
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Existing disease in pop at a point in time (# exustubg cases/current pop.)
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Incidence
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# new cases in pop at risk during specified time; impt. to the sudy of the etiology of disease.
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Attack Rate
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Proportion of pople exposed to agent who develop disease; food born infections.
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