Study Design Flow - Note exposure usually reflects the present Nested Case-Control Study Prospective Cohort Study Do the study investigators

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Individual-level Data or Group-level Data? INDIVIDUAL GROUP Is the sample selected based on whether people are cases or controls? YES NO Ecological Study When is the exposure measured relative to the outcome? BEFORE SAME TIME Is the study population a subsample of a larger cohort? YES NO Case-Control Study Note: exposure reflects the past Cross-sectional Study
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Unformatted text preview: Note: exposure usually reflects the present Nested Case-Control Study Prospective Cohort Study Do the study investigators control the exposure? YES NO Experimental Study Flow Chart for Diagnosing a Study Design Did study start in the past or present? PAST PRESENT Retrospective Cohort Study...
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This note was uploaded on 02/21/2010 for the course PH 150A taught by Professor Adams during the Spring '08 term at University of California, Berkeley.

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