RT Journal Article SR Electronic T1 Plasma fibrinogen and plasminogen levels in health and in ischaemic heart disease JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 352 OP 356 DO 10.1136/jcp.19.4.352 VO 19 IS 4 A1 C. M. Ogston A1 D. Ogston YR 1966 UL http://jcp.bmj.com/content/19/4/352.abstract AB Plasma fibrinogen and plasminogen levels were measured in 122 male and 56 female healthy adult subjects and in 64 men with ischaemic heart disease. Plasma fibrinogen levels were found to rise markedly and progressively with age in both male and female healthy subjects; plasminogen showed only a slight rise with age. No sex differences were found for either fibrinogen or plasminogen. The correlation between plasminogen and fibrinogen levels was low, reaching the 5% level of significance only in men. Patients with ischaemic heart disease were found to have significantly increased fibrinogen and plasminogen levels in the 31-45 years age group only.