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.
- Blazer, Daniel German
- Cohen, Harvey Jay
- Fillenbaum, Gerda G.
- Kuchibhatla, Maragatha
- Miranda, Marie Lynn
- Purser, JL; Kuchibhatla, MN; Miranda, ML; Blazer, DG; Cohen, HJ; Fillenbaum, GG
Volume / Issue
- 2 / 4
Start / End Page
- 335 - 348
Pubmed Central ID
Electronic International Standard Serial Number (EISSN)
Digital Object Identifier (DOI)