lecture 12 - Descriptive Studies Lecture 11 Descriptive...

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1 Lecture 11 Descriptive Studies Descriptive Studies { Describe correlations between exposure and disease { Focus: Person, place, time factors { Purpose: Describe health trends and formulate hypotheses { Observational in nature z Look at the large-scale picture through group data z Look at the correlation between exposure and disease without accounting for temporality Descriptive Studies { Case Report { Ecological { Cross sectional Case Reports { Describe new case(s) of disease { Who – patient demographics { What – Symptoms { When – time course of disease { Where – location of affected person { Highlight unusual disease presentation { May be used to aggregate new cases and describe new syndromes Ecological Studies { Unit of observation = group { Use population measures to describe outcomes with respect to the exposure or risk factor of interest { Risk factors correlate with incidence or prevalence data in specific locations Ecological Studies (cont’d) Known information: { # of cases (or rate of disease)
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This note was uploaded on 04/06/2008 for the course PUBLIC HEA 832:335 taught by Professor Schneider during the Spring '08 term at Rutgers.

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lecture 12 - Descriptive Studies Lecture 11 Descriptive...

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