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HIV testing among midlife women in the deep south: an analysis of the 2008 Behavioral Risk Factor Surveillance System

Lisa T Wigfall1, Donna L Richter, Myriam E Torres

  • 1University of South Carolina-Arnold School of Public Health, Institute for Partnerships to Eliminate Health Disparities, 220 Stoneridge Drive, Columbia, SC 29210, USA. lisa.wigfall@sc.edu

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Longitudinal Research

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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Bias in Epidemiological Studies

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Statistical Methods for Analyzing Epidemiological Data

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