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James SN, Lane CA, Parker TD, Lu K, Collins JD, Murray-Smith H, Byford M, Wong A, Keshavan A, Buchanan S, Keuss SE, Kuh D, Fox NC, Schott JM, Richards M. Using a birth cohort to study brain health and preclinical dementia: recruitment and participation rates in Insight 46. BMC Res Notes 2018; 11:885. [PMID: 30545411 PMCID: PMC6293512 DOI: 10.1186/s13104-018-3995-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/06/2018] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Identifying and recruiting people with early pre-symptomatic Alzheimer's disease to neuroimaging research studies is increasingly important. The extent to which results of these studies can be generalised depends on the recruitment and representativeness of the participants involved. We now report the recruitment and participation patterns from a neuroscience sub-study of the MRC National Survey of Health and Development, "Insight 46". This study aimed to recruit 500 participants for extensive clinical and neuropsychological testing, and neuroimaging. We investigate how sociodemographic factors, health conditions and health-related behaviours predict participation at different levels of recruitment. RESULTS We met our target recruitment (n = 502). Higher educational attainment and non-manual socio-economic position (SEP) were consistent predictors of recruitment. Health-related variables were also predictive at every level of recruitment; in particular higher cognition, not smoking and better self-rating health. Sex and APOE-e4 status were not predictors of participation at any level. Whilst recruitment targets were met, individuals with lower SEP, lower cognition, and more health problems are under-represented in Insight 46. Understanding the factors that influence recruitment are important when interpreting results; for Insight 46 it is likely that health-related outcomes and life course risks will under-estimate those seen in the general population.
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Affiliation(s)
- Sarah-Naomi James
- MRC Unit for Lifelong Health and Ageing at UCL, London, UK
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Christopher A. Lane
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Thomas D. Parker
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Kirsty Lu
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Jessica D. Collins
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Heidi Murray-Smith
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | | | - Andrew Wong
- MRC Unit for Lifelong Health and Ageing at UCL, London, UK
| | - Ashvini Keshavan
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Sarah Buchanan
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Sarah E. Keuss
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Diana Kuh
- MRC Unit for Lifelong Health and Ageing at UCL, London, UK
| | - Nick C. Fox
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Jonathan M. Schott
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
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