Influence of age and health behaviors on stroke risk: lessons from longitudinal studies

Margaret Kelly-Hayes1

  • 1Department of Neurology, Boston University School of Medicine, Boston, Massachusetts 02118, USA. mkhayes@bu.edu

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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Longitudinal Studies

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