Summary
The use of ambulatory BP monitoring is increasing, yet few normal data exist. We report a collaborative study (5 Centers) of 199 normal subjects monitored once each for 22.9 h (mean) with the Del Mar Avionics Pressurometer system. There were 149 men age 17–69 yr and 50 women age 18–60 yr; 191 were caucasian and 8 black. All subjects had repeated casual BPs < 140/90 prior to monitoring. Major results were: 1) within the preset normotensive limits of BP there was no difference in SBP with age. During work, DBP was 6.1 mm Hg higher in men > 40 than < 40 yr. 2) In men and women matched for age, SBP was higher in men, DBP slightly higher in women in subjects < 30 yr, and HR was higher in women. 3) With sleep SBP fell ≃ 12%, DBP ≃ 15% and HR ≃ 20% (p < 0.001 vs SBP) in both sexes. 4) BP variability was as great within subjects (mean of individual SDs) as among subjects (SDs of group mean). 5) In all subjects during the work day the mean ambulatory BP, and this mean +2 SD (all values rounded), were 121/77 and 138/92 for men, and 109/77 and 126/89 for women. Mean ambulatory BPs and the means +1 SD and + 2 SD are tabulated herein for various age groups. We present these data as tentative yardsticks for the assessment of casual BPs as well as ambulatory BP records.
In individuals with questionable hypertension, a 24 h ambulatory BP recording to establish his or her own mean and SD can be useful in evaluating past and future casual BPs, and in assessing the BP with respect to the present normal data.
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© 1984 Springer-Verlag Berlin Heidelberg
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Wallace, J.M. et al. (1984). Ambulatory blood pressure in 199 normal subjects, a collaborative study. In: Weber, M.A., Drayer, J.I.M. (eds) Ambulatory Blood Pressure Monitoring. Steinkopff, Heidelberg. https://doi.org/10.1007/978-3-662-05685-1_16
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DOI: https://doi.org/10.1007/978-3-662-05685-1_16
Publisher Name: Steinkopff, Heidelberg
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