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Assessing the impact of large scale nutrition interventions

Lawrence Haddad1

  • 1International Food Policy Research Institute, USA.

Forum of Nutrition
|April 6, 2005
PubMed
Abstract

No abstract available in PubMed .

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Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.