Epidemiological study design and principles of data analysis
An integrated suite of methods
Epidemiological studies have apparently distinct designs but are unified by their common goal to understand the frequency and causes of disease, by their strategy of seeking associations between exposures (potential causes) and outcomes (disease), by their utilization of the survey method, and by their basis in defined populations. This chapter discusses study design and analysis. Topics covered include classifications of study design; case series, cross-sectional study, case-control study, cohort study, trials, and data analysis and interpretation.
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