oa Central African Journal of Medicine - The evolution of blood pressure limits and the presentation of new ranges for normal people

Volume 1, Issue 2
  • ISSN : 0008-9176



The predominant ideas about normal blood pressure limits have been largely on data relating blood pressure readings to group mortality figures. These studies have been issued mainly by the life insurance companies. The practice of using selected group mortality rates to establish normal limits of blood pressure is improper, for these limits are of little aid in determining the significance of the blood pressure reading in the individual case. From time to time clinicians have pointed out the fallacy of accepting these rigid criteria to delimit the normal from the abnormal. Accordingly, the problem of obtaining new limits of normal and abnormal blood pressure was paramount. We have analysed and presented data, based on 74,000 blood pressure readings, which raise the normal limits of blood pressure usually accepted today.

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