In 1.035 persons with reduced glucose tolerance (borderline diabetics, diabetic biophan G test admissions, spontaneous admissions and diabetics treated already for a longer time) the cardiovascular factors of risk over-weight (Broca-weight greater than or equal to 110%), hypertension (RR greater than or equal to 160/and/or 95 Torr), hypertriglyceridaemia (greater than or equal to 200 mg/100 ml), hypercholesterolaemia (greater than or equal to 300 mg/100 ml) and hyperuricaemia (greater than or equal to 6.5 mg/100 ml in males and 6.0 mg/100 ml in females) were determined and compared with the frequency of the same danger indicators of 255 persons with certainly normal glucose tolerance. Taking into consiteration the reduction of the glucose tolerance as cardiovascular factor of risk the glucosuria test admissions with 3.48 factor of risk/proband had no less factors of risk than the spontaneous diabetic admissions (3.29 factor of risk/proband). Already the borderline diabetic differed in the frequency of overweight, hypertension and hypertriglyceridaemia significantly (p less than 0.01) from the normal case of the same age. Thus the glucose tolerance disturbed in its limit deserves increased consideration from the diabetological as well as from the cardiological point of view.