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Cardiac troponin I ...
Cardiac troponin I levels measured with a high-sensitive assay increase over time and are strong predictors of mortality in an elderly population
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- Eggers, Kai M. (författare)
- Uppsala universitet,Kardiologi
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- Venge, Per (författare)
- Uppsala universitet,Koagulation och inflammationsvetenskap
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- Lindahl, Bertil (författare)
- Uppsala universitet,Uppsala kliniska forskningscentrum (UCR),Kardiologi
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- Lind, Lars (författare)
- Uppsala universitet,Kardiovaskulär epidemiologi
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- Engelska.
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Ingår i: Journal of the American College of Cardiology. - : Elsevier BV. - 0735-1097 .- 1558-3597. ; 61:18, s. 1906-1913
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- BACKGROUND:Cardiac troponin levels are often detectable in community-dwellers when sensitive assays are applied. However, information on the course of troponin levels over time is limited.OBJECTIVES:We assessed changes in troponin levels, underlying conditions and the prognostic implications thereof in elderly subjects from the community.METHODS: Cardiac troponin I (cTnI) was measured using a novel high-sensitive assay from Abbott Laboratories in community-dwellers aged 70 years (PIVUS study). Measurements were performed at baseline (n=1004) and after 5 years (n=814). Total follow-up was 8.0 years.RESULTS:cTnI levels were detectable in 968 (96.4%) subjects at baseline, and independently predicted all-cause mortality (adjusted HR 1.44 [95% CI 1.18-1.77]) and cardiovascular mortality (adjusted HR 1.66 [95% CI 1.20-2.29]) when levels from baseline and 5-year follow-up were used as updated covariates. The integrated discrimination improvement of cTnI regarding all-cause mortality was 0.014 (p=0.04) and the category-free net reclassification improvement was 0.231 (p=0.02). Median cTnI levels increased by 45% between both measurements. The change in cTnI levels was significantly related to male sex (p=0.02), body mass index (p=0.01), HDL-cholesterol (p=0.005), N-terminal pro B-type natriuretic peptide (p=0.004) and the left-ventricular ejection fraction (p=0.04), and independently predicted all-cause mortality occurring after 5-year follow-up (adjusted HR 1.97 [1.14-3.40]; p=0.02).CONCLUSIONS:Using a novel high-sensitive assay, cTnI levels could be determined in nearly all elderly subjects. cTnI levels increased over time and were a strong marker of mortality risk. Our data suggest that cTnI might offer utility for clinical assessment of subjects in the general population.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
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