Ambulatory twenty four hour blood pressure monitoring (ABPM) is an exact method, enabling by repeated measurements to create blood pressure profile, which shows a close correlation with end organ damage. Normal values were taken from clinical trials, where the mean age of pro- bands was highly above 30 years. The aim of this trial was to determine mean values for ABPM in population aged 18 - 30 years and to create „normal values“ for this population. We have examined 162 probands. The mean office blood pressure was 128.18 ± 11.2/82.91 ± 8.29 mm Hg, the mean ABPM (24 hours) was 118.51 ± 9.11/70.59 ± 6.30 mm Hg. Systolic, mean and pulse pressure was significantly higher in males. Systolic and pulse blood pressure showed a close correlation with height, weight, waist and waist/hip ratio (r = 0.40 - 0.47). The upper value of 24 hour BP in young population is between 125/75 mm Hg and 130/80 mm Hg according to our results.

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