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Johansen, J.S. et al.

Julia S. Johansen, Stig E. Bojesen, Anne Tybjaerg-Hansen, Anne K. Mylin, Paul A. Price, Børge G. Nordestgaard,

Plasma YKL-40 and total and disease-specific mortality in the general population.

BACKGROUND: Increased plasma YKL-40 is associated with short-term survival in patients with cardiovascular disease and cancer. We tested the hypothesis that increased plasma YKL-40 is associated with total and disease-specific mortality in the general population. METHODS: We measured plasma YKL-40 in 8899 study participants, aged 20-95 years, in the Copenhagen City Heart Study from the Danish general population who were followed for 16 years: 3059 died, 2158 had ischemic cardiovascular disease, 2271 had cancer, and 2820 had other diseases associated with increased YKL-40. Hazard ratios for early death and absolute 10-year mortality rates were calculated according to plasma YKL-40 percentile groupings computed within sex and age decade: 0%-33%, 34%-66%, 67%-90%, 91%-95%, and 96%-100%. RESULTS: Median survival age decreased from 83 years for participants with plasma YKL-40 in category 0%-33% to 69 years in category 96%-100% (trend, P < 0.0001). Risk of early death was increased (multifactorially adjusted hazard ratios) by 10% for YKL-40 category 34%-66%, by 30% for 67%-90%, by 70% for 91%-95%, and by 90% for 96%-100% vs YKL-40 category 0%-33% (trend, P < 0.0001). Corresponding increases in participants with ischemic cardiovascular disease were 10%, 20%, 80%, and 60% (P < 0.0001); in those with cancer were 10%, 20%, 50%, and 70% (P < 0.0001); and in those with other diseases were 10%, 20%, 40%, and 60% (P < 0.0001). Highest absolute 10-year mortality rates were 78% and 90% in women and men, respectively, who were >70 years old, smoked, and were in YKL-40 category 96%-100%. CONCLUSIONS: Increased plasma YKL-40 is associated with risk of early death from cardiovascular disease, cancer, and other diseases in the general population.[1]

References

Plasma YKL-40 and total and disease-specific mortality in the general population. Johansen, J.S., Bojesen, S.E., Tybjaerg-Hansen, A., Mylin, A.K., Price, P.A., Nordestgaard, B.G. Clin. Chem. (2010) [Pubmed]

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