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11 Cards in this Set
- Front
- Back
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Relative risk
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ratio of incidence of disease in exposed to incidence in unexposed
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RR=
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[a/(a+b)]/[c/(c+d)]
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Odds ratio
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ratio of probability of an event occurring to probability of it not occurring
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OR=
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ad/bc
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Attributable risk
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proportion of disease in exposed animals that is due to exposure
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Population attributable proportion
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proportion of incidence of disease in a population that is due to exposure
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Goal of epi stats
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determine if there is an association between exposure to a risk factor and disease
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Type I error
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study finds association when there is none
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Type II error
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study does not find association when there is one
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P-value
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probability that a difference of that magnitude could be due to chance
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Confidence interval
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range of values within which one is reasonably confident that the true value lies
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