[Blood pressure variation].

A blood pressure profile at rest was recorded in 2,000 patients (1,069 females, 931 males) by DINAMAP 845 (from 8 AM to 8 PM. a record every fifteen minute). The limit between normotensive and hypertensive patients in this settled by WHO (BP = 160/95 mmHg). The analysis of percentage of pathological values (BP greater than 160/95 mmHg) allowed us to identify eight type of recordings. Normal (295), Border line hypertension less than or equal 20 p. 100 of pathological values (573), Paroxysmal hypertension (58), hypertension with predominance (963) of whom 484 with systolic predominance and 479 with diastolic predominance, Isolated systolic hypertension (15), Isolated diastolic hypertension (47), hypertension without predominance (15) and Permanent hypertension (82). The variability of blood pressure was studied by using the coefficient of variation = p. 100 of standard deviation/mean.(ABSTRACT TRUNCATED AT 250 WORDS)