E. Ernst, MD
To the Editors: Fibrinogen is currently recognized as a major, independent risk factor for cardiovascular disease. Several population-based studies have linked fibrinogen with other risk factors and with incidence of future cardiovascular events (1). These studies have also produced a rich source for "normal" values that, surprisingly, range from 2.3 to 4.0 g/L. Obviously, the method of measurement has a strong influence. I therefore looked only at those studies that employed the standard method based on thrombin coagulation time; at least three other methods are frequently used (Table 1).
Mean fibrinogen values vary from 2.3 to 3.1 g/L. This cannot
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Ernst E. Regional Variations in Plasma Fibrinogen Levels. Ann Intern Med. 1991;115:329-330. doi: 10.7326/0003-4819-115-4-329_2
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Published: Ann Intern Med. 1991;115(4):329-330.
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