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Correlates of longitudinal leukocyte telomere length in the Costa Rican Longevity Study of Healthy Aging (CRELES): On the importance of DNA collection and storage procedures

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Listed:
  • Luis Rosero-Bixby
  • David H Rehkopf
  • William H Dow
  • Jue Lin
  • Elissa S Epel
  • Jorge Azofeifa
  • Alejandro Leal

Abstract

The objective is to identify cofactors of leukocyte telomere length (LTL) in a Latin American population, specifically the association of LTL with 36 socio-demographic, early childhood, and health characteristics, as well as with DNA sample collection and storage procedures. The analysis is based on longitudinal information from a subsample of 1,261 individuals aged 60+ years at baseline from the Costa Rican Study of Longevity and Healthy Aging (CRELES): a nationally representative sample of elderly population. Random effects regression models for panel data were used to estimate the associations with LTL and its longitudinal changes. Sample collection procedures and DNA refrigerator storage time were strongly associated with LTL: telomeres are longer in blood collected in October-December, in DNA extracted from

Suggested Citation

  • Luis Rosero-Bixby & David H Rehkopf & William H Dow & Jue Lin & Elissa S Epel & Jorge Azofeifa & Alejandro Leal, 2019. "Correlates of longitudinal leukocyte telomere length in the Costa Rican Longevity Study of Healthy Aging (CRELES): On the importance of DNA collection and storage procedures," PLOS ONE, Public Library of Science, vol. 14(10), pages 1-18, October.
    • Handle: RePEc:plo:pone00:0223766
    DOI: 10.1371/journal.pone.0223766
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    References listed on IDEAS

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    1. Luis Rosero-Bixby & William H. Dow, 2009. "Surprising SES Gradients in Mortality, Health, and Biomarkers in a Latin American Population of Adults," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 64(1), pages 105-117.
    2. Patrick Royston & John B. Carlin & Ian R. White, 2009. "Multiple imputation of missing values: New features for mim," Stata Journal, StataCorp LP, vol. 9(2), pages 252-264, June.
    3. Needham, Belinda L. & Adler, Nancy & Gregorich, Steven & Rehkopf, David & Lin, Jue & Blackburn, Elizabeth H. & Epel, Elissa S., 2013. "Socioeconomic status, health behavior, and leukocyte telomere length in the National Health and Nutrition Examination Survey, 1999–2002," Social Science & Medicine, Elsevier, vol. 85(C), pages 1-8.
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