Blood pressure was measured under standardized conditions in 151 first-grade schoolchildren. The values of this small sample were normally distributed and statistical analysis was therefore performed. The systolic blood pressure of boys and girls was 102.0 +/- 9 mm Hg and the diastolic blood pressure 69.5 +/- 7.3 mm Hg. Boys and girls were also analyzed separately. The data fit in very well those from the literature, and it is concluded that the values from the literature, especially those of the "Task force of blood pressure control", can be used with high probability for Berne and Switzerland as well. Additional findings: The skin thickness of all children and of girls correlates with blood pressure in the normal range. The family history with regard to risk factors is probably only of importance if precise questions are asked, since general inquiries about obesity, myocardial infarction, and hypertension did not yield useful results.