In 30 patients with varying degrees of claudication and 40 normal subjects, plasma levels of β-thromboglobulin were determined. These were significantly higher (p < 0.01) in the patients than in age-matched controls; in the control group the β-thromboglobulin values resulted slightly higher in older subjects. No correlation was found between β-thromboglobulin and the severity of the vascular disease, assessed on the basis of the pain-free interval on the treadmill.
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