High-sensitivity C-reactive protein predicts mortality but not stroke: The Northern Manhattan Study

M. S.V. Elkind, J. M. Luna, Y. P. Moon, K. M. Liu, S. L. Spitalnik, M. C. Paik, R. L. Sacco

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56 Scopus citations

Abstract

OBJECTIVE:: To determine whether high-sensitivity C-reactive protein (hsCRP) and serum amyloid A (SAA) predict stroke, vascular events, and mortality in a prospective cohort study. BACKGROUND:: Markers of inflammation have been associated with risk of myocardial infarction (MI). Their association with stroke is controversial. METHODS:: The Northern Manhattan Study includes a stroke-free community-based cohort study in participants aged ≥40 years (median follow-up 7.9 years). hsCRP and SAA were measured using nephelometry. Cox proportional hazards models were used to calculate hazard ratios (HR) and 95% confidence intervals (CI) for the association of markers with risk of ischemic stroke and other outcomes after adjusting for demographics and risk factors. RESULTS:: hsCRP measurements were available in 2,240 participants (mean age 68.9 ± 10.1 years; 64.2% women; 18.8% white, 23.5% black, and 55.1% Hispanic). The median hsCRP was 2.5 mg/L. Compared with those with hsCRP <1 mg/L, those with hsCRP >3 mg/L were at increased risk of ischemic stroke in a model adjusted for demographics (HR = 1.60, 95% CI 1.06-2.41), but the effect was attenuated after adjusting for other risk factors (adjusted HR = 1.20, 95% CI 0.78-1.86). hsCRP >3 mg/L was associated with risk of MI (adjusted HR = 1.70, 95% CI 1.04-2.77) and death (adjusted HR = 1.55, 95% CI 1.23-1.96). SAA was not associated with stroke risk. CONCLUSION:: In this multiethnic cohort, high-sensitivity C-reactive protein (hsCRP) was not associated with ischemic stroke, but was modestly associated with myocardial infarction and mortality. The value of hsCRP and serum amyloid A may depend on population characteristics such as age and other risk factors.

Original languageEnglish (US)
Pages (from-to)1300-1307
Number of pages8
JournalNeurology
Volume73
Issue number16
DOIs
StatePublished - 2009

ASJC Scopus subject areas

  • Clinical Neurology

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    Elkind, M. S. V., Luna, J. M., Moon, Y. P., Liu, K. M., Spitalnik, S. L., Paik, M. C., & Sacco, R. L. (2009). High-sensitivity C-reactive protein predicts mortality but not stroke: The Northern Manhattan Study. Neurology, 73(16), 1300-1307. https://doi.org/10.1212/WNL.0b013e3181bd10bc