Objective of the work is to evaluate the prevalence of arterial hypertension , awareness of it , its treatment and control in the Czech part of the Pardubice - Augsburg Study. A random sample of 191 men aged 45 - 64 years was invited for examination. Arterial hypertension according to the present definition of WHO /International Society of Hypertension (blood pressure > 140/90 mm Hg = 18.8/12kPa) was recorded in 113 subjects, its prevalence being 59%. 55% hypertensive patients were aware of their diagnosis. 40% of the hypertensive patients were on pharmacological treat- ment. Hypertension control was achieved in 9% of the treated and in 4% of all hypertensive subjects. Hypertension Control in the investigated representative population sample is inadequa- te. The greatest problem the inadequate reduction of blood pressure to target values. Comparison of hypertension control using older ( BP> 160/95 mm Hg = 21.3/12.6 kPa) and present (BP> 140/90 mm Hg = 18.6/12 kPa) definitions of arterial hypertension suggests that the great majority of unsuccessfully treated hypertensive subjets has borderline blood pressure values.

        Key words: Arterial hypertension - Prevalence of hypertension - Treatment of hypertension.