Document Detail

The inflammatory biomarker YKL-40 at admission is a strong predictor of overall mortality.
MedLine Citation:
PMID:  23140269     Owner:  NLM     Status:  Publisher    
OBJECTIVE: YKL-40 is an inflammatory biomarker associated with disease activity and mortality in patients with diseases characterized by inflammation and tissue remodelling. The aim of this study was to describe the prognostic value of YKL-40 in an unselected patient population. DESIGN: In consecutive patients admitted to hospital during a 1-year period, blood was collected and information regarding final diagnosis and mortality was collected. Median follow-up time was 11.5 years. SETTING: District hospital, Copenhagen, Denmark. PATIENTS: A total of 1407 patients >40 years of age were admitted acutely. MAIN OUTCOME MEASURE: All-cause mortality. RESULTS: Median YKL-40 was increased in patients (157 μg/L, range 13-7704 μg/L) compared to healthy controls (40 μg/L, range 29-58 μg/L; P<0.001). Patients with YKL-40 in the highest quartile had a hazard ratio (HR) of 7.1 [95% confidence interval (CI) 4.2-12.0] for all-cause mortality in the first year, and 3.4 (95% CI 2.8-4.2) in the total study period, compared to those in the lowest quartile (HR=1). The HR for death for all patients with YKL-40 above the normal age-corrected 95th percentile was 2.1 (95% CI 1.6-2.7) after 1 year and 1.5 (95% CI 1.3-1.7) during the total study period, compared to patients with YKL-40 below the age-corrected 95-percentile. The results of multivariable analysis showed that YKL-40 was an independent biomarker of mortality; this was most significant in the first year. YKL-40 was a marker of prognosis in all disease categories. The HR for death was increased in patients with YKL-40 above the normal age-corrected 95-percentile in healthy subjects independent of type of disease (all P<0.001). CONCLUSION: The level of YKL-40 at admission is a strong predictor of overall mortality, independent of diagnosis, and could be useful as a biomarker in the acute evaluation of all patients. © 2012 The Association for the Publication of the Journal of Internal Medicine.
Naja Dam Mygind; Kasper Iversen; Lars Køber; Jens P Goetze; Henrik Nielsen; Soren Boesgaard; Morten Bay; Julia S Johansen; Olav Wendelboe Nielsen; Vibeke Kirk; Jens Kastrup
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-12
Journal Detail:
Title:  Journal of internal medicine     Volume:  -     ISSN:  1365-2796     ISO Abbreviation:  J. Intern. Med.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8904841     Medline TA:  J Intern Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Association for the Publication of the Journal of Internal Medicine.
Departments of Cardiology, Rigshospitalet, Copenhagen, Denmark.
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