C‐REACTIVE PROTEIN IN A RANDOM SAMPLE OF SWEDISH MEN AGED FIFTY

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Abstract
The CRP concentration has been determined by means of immunodiffusion techniques in blood sera from a random sample of 826 men aged fifty. The prevalence rates of sera with CRP concentrations equal to or higher than 1–4.2 μg/ml increased with increased tobacco consumption, severity of symptoms of respiratory disease and elevated sedimentation rate. In contrast to this the prevalence rate of sera containing trace amounts of CRP decreased as these variables increased. It is suggested that the presence of trace amounts of CRP in several consecutive samples from an individual is of minor clinical significance, but may rather indicate changes associated with aging.