What Qualifies As A Longitudinal Study. Observations at a single point in time. Such investigations vary enormously in their size and complexity.
A longitudinal study refers to an investigation where partici- pant outcomes and possibly treatments or exposures are collected at multiple follow-up times. Observations at a single point in time. Researchers are also recruiting cognitively normal volunteers for a one-year comparison.
Participants will have clinical and cognitive assessments computerized cognitive tests biomarker and genetic tests.
In a longitudinal study subjects are followed over time with continuous or repeated monitoring of risk factors or health outcomes or both. The Longitudinal Early-Onset Alzheimers Disease Study LEADS is a two-year observational study designed to look at disease progression in adults with early-onset Alzheimers disease. Aspirations to become an anaesthetist. Researchers are also recruiting cognitively normal volunteers for a one-year comparison.
