D-dimer and inflammatory markers as predictors of functional decline in men and women with and without peripheral arterial disease

Mary M. McDermott*, Luigi Ferrucci, Kiang Liu, Michael H. Criqui, Philip Greenland, David Green, Jack M. Guralnik, Paul M. Ridker, Lloyd M. Taylor, Nader Rifai, Lu Tian, Jane Zheng, William H. Pearce, Joseph R. Schneider, Ed Vonesh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

OBJECTIVES: To determine whether higher circulating levels of inflammatory and thrombotic markers are associated with greater decline in lower extremity performance. DESIGN: Prospective cohort. SETTING: Academic medical center. PARTICIPANTS: Three hundred thirty-seven men and women with lower extremity peripheral arterial disease (PAD) and 215 without PAD. MEASUREMENTS: Objective measures of leg function, including the 6-minute walk and Short Physical Performance Battery (SPPB), were obtained at baseline and annually for 3 years. D-dimer, high-sensitivity C-reactive protein, serum amyloid A, and fibrinogen levels were measured at baseline. Participants were categorized into one of three groups, ranging from low to high levels of inflammation, depending on the number of individual blood factors in the lowest and highest tertiles for each corresponding blood factor. RESULTS: Adjusting for age, sex, race, ankle brachial index, comorbidities, and other confounders, greater inflammation was associated with greater decline in the SPPB (P = .008). Results were similar when repeated in participants with and without PAD separately (P for trend = .04 for participants with PAD and .07 for participants without PAD). In fully adjusted analyses, there were no significant associations between inflammation group and decline in 6-minute walk performance. CONCLUSION: Higher baseline levels of inflammatory markers and D-dimer were associated with greater decline in the SPPB at 3-year follow-up in persons with and without PAD.

Original languageEnglish (US)
Pages (from-to)1688-1696
Number of pages9
JournalJournal of the American Geriatrics Society
Volume53
Issue number10
DOIs
StatePublished - Oct 2005

Keywords

  • C-reactive protein
  • Inflammation
  • Intermittent claudication
  • Peripheral vascular disease
  • Physical functioning

ASJC Scopus subject areas

  • Geriatrics and Gerontology

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