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SEM 1:
Collection of public health:
| Question | Answer |
|---|---|
| routinely available data | observe + describe |
| planned epidemiological studies | discover + analyse |
| types of routine data sources (5) | I- demographic data II - mortality data (deaths) III- morbidity data (illness) IV- risk factors V- health service performance |
| screening test | assess risk of disease in asymptomatic person to determine need for further confirmatory diagnostic testing |
| diagnostic test | confirm or exclude the presence of a disease |
| pronostic test | assess risk of future disease and the need for preventative measures |
| case finding | identify people from larger population for specific purpose |
| risk stratification | divide population into different strava of risk for specified outcome |
| lead time bias | earlier detection |
| length time bias | detect slow growing less aggressive disease |
| false positive | positive but doesnt actually have disease |
| false negative | says negative but actually has disease |
| sensitivity | proportion of those with a disease which it correctly identifies |
| specificity | proportion of those without disease which it correctly identifies ( |
| positive predictive value | probability that a subject has the disease given that they have a positive result |
| negative predictive value | probability that a subject does not have the disease given that they have a negative result |
Created by:
kablooey
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