Geographical segregation and IL-6: a marker of chronic inflammation in older adults.

Journal Article (Journal Article)

AIM: To examine environmental sociodemographic risks of high IL-6, a marker of chronic inflammation in older adults. METHODS: We spatially linked 1990 USA Census tract demographic and economic measures to a prospective cohort study of representative community residents aged 71 years and older, from over 1700 of whom a cytokine protein and biological marker of chronic inflammation. IL-6, was collected. Using generalized interactive mixed models, we modeled 1989-1990 individual and census level risk factors for the dependent variable high IL-6 between 1992-1993 (high IL-6 = upper quartile: >2.96 pg/ml). RESULTS: After individual health risk adjustment, IL-6 remained elevated in communities with greater densities of poor older adults (odd ratio [OR]: 1.25 per 10% increase in exposure. 95% confidence interval [CI]: 1.05, 1.48) and in racially segregated communities (OR: 1.14 per 10% increase in exposure. 95% CI: 1.04, 1.25). CONCLUSIONS: Socially disadvantaged environments may influence IL-6, a biomarker of age-associated inflammation.

Full Text

Duke Authors

Cited Authors

  • Purser, JL; Kuchibhatla, MN; Miranda, ML; Blazer, DG; Cohen, HJ; Fillenbaum, GG

Published Date

  • 2008

Published In

Volume / Issue

  • 2 / 4

Start / End Page

  • 335 - 348

PubMed ID

  • 19655043

Pubmed Central ID

  • PMC2719974

Electronic International Standard Serial Number (EISSN)

  • 1752-0371

Digital Object Identifier (DOI)

  • 10.2217/17520363.2.4.335


  • eng

Conference Location

  • England