COLD PRESSOR TEST - A 20-YEAR FOLLOWUP STUDY OF 123 SUBJECTS
SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX
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IN 1960 BLOOD PRESSURES WERE OBTAINED ON 106 ACTIVE AND RETIRED MILITARY SUBJECTS ON WHOM THE COLD PRESSOR TEST HAD BEEN PERFORMED IN 1940. These blood pressures and the cold pressor index rise in systolic blood pressure, millimeters of mercury were analyzed for predictability of future hypertension from the index. The mean index of the 11 who became hypertensive was significantly larger than the mean index of the 51, of comparable age, 35 years and older, who remained normotensive. Statistical association was found between hyperreaction using a cutting point of 10 mm. Hg and hypertension however, the accuracy of prediction is not good. Thus the test as defined is not recommended as a predictor of future hypertension. An average increase in diastolic blood pressure of about 7 mm. Hg every 20 years was observed crosssectionally in 1940 and longitudinally.
- Anatomy and Physiology