PUBH 3131 Lecture Notes - Lecture 3: Disease Surveillance, Centralized Database, Drug Resistance

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20 Mar 2018
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Age at event +cohort= period of event. Defining populations: describing groups by selected variables. Target population vs study population vs sample. Census: count everyone except undocumented, homeless, rural. Estimation: statistics from sample are estimate of true numbers. Link to public health practice and action. Determine data source or data collection mechanism. Frequency, severity, cost, preventability, public interest, feasibility, communicability. Ensure same criteria, makes data comparable, clearly defined person, symptoms. Problems with underreporting: misdiagnosis, paperwork, time, people stay home. Providers contacted on regular basis to collect info. Centralized database for collection of information about a disease. Track patients and to select cases for case control studies. Use health related data that preceded diagnosis and signal a sufficient proability of a case or an outbreak to warrant further public health response. Key report sources are selected to participate in an enhanced disease surveillance system. Diagnostic indicators to identify emerging health problem. Inform from multiple sources is linked for each individual over time.

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