Max Rady College of Medicine

Term: Longitudinal Survey

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Glossary Definition

Last Updated: 2015-05-12


A longitudinal survey is a survey that collects data on a sample population at multiple points in time. Longitudinal survey data can be used to estimate the incidence of new cases of a disease or condition and examine trends over time in a population. An advantage of collecting repeated observations for the same population over time is that any change identified will be controlled for time-invariant unmeasured confounders at the individual level.

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Manitoba Centre for Health Policy
Community Health Sciences, Max Rady College of Medicine,
Rady Faculty of Health Sciences,
Room 408-727 McDermot Ave.
University of Manitoba
Winnipeg, MB R3E 3P5 Canada