Add Health Wave IV Documentation: Lipids Public Deposited
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- Potter, Alan J.
Cuthbertson, Carmen C.
- Affiliation: Gillings School of Global Public Health, Department of Epidemiology
- Clapshaw, Patric A.
- Affiliation: Gillings School of Global Public Health, School of Medicine, Division of Cardiology, Department of Medicine, Department of Epidemiology
- Wener, Mark H.
- Affiliation: Gillings School of Global Public Health, Department of Maternal and Child Health
Tabor, Joyce W.
- Affiliation: Carolina Population Center
Killeya-Jones, Ley A
- Affiliation: School of Medicine, Department of Radiology
Harris, Kathleen Mullan
- Affiliation: College of Arts and Sciences, Department of Sociology
- During Wave IV, Add Health collected biological specimens from a large, nationally representative sample of young adults. Given the size of the Wave IV sample, its geographic distribution, and in-home setting of the respondent interviews, biological specimen collection involved practical, relatively non-invasive, cost-efficient and innovative methods. These methods included collection of capillary whole blood via finger prick by trained and certified field interviewers, its in situ desiccation, then shipment, assay and archival of dried blood spots. The collection of capillary whole blood followed the collection of cardiovascular and anthropometric measures (Entzel et al. 2009) and saliva (Smolen et al. 2013). It preceded the collection of data on respondent use of prescription and select over-the-counter medications (Tabor et al. 2010). Further details on the design of Add Health Waves I-IV, are available elsewhere (Harris 2012; Harris et al. in press). Included in the Add Health Wave IV restricted use and public use data are thirteen constructed measures designed to facilitate analysis and interpretation of lipids results: • Total cholesterol decile • High-density lipoprotein cholesterol decile • Triglycerides decile • Total cholesterol measurement method • High-density lipoprotein cholesterol measurement method • Triglycerides measurement method • Low-density lipoprotein cholesterol decile • Non-high-density lipoprotein cholesterol decile • Total to high-density lipoprotein cholesterol ratio decile • Fasting duration • Fasted for nine hours or more • Antihyperlipidemic medication use • Hyperlipidemia. This document summarizes the rationale, equipment, protocol, assay, internal quality control, data cleaning, external quality control, and classification procedures for each measure listed above. Measures of glucose homeostasis, inflammation, immune function, and candidate genes are documented elsewhere (Whitsel et al. 2012a, 2012b; Smolen et al. 2013).
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- National Longitudinal Study of Adolescent to Adult Health (Add Health)
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