Standard Blood Pressure Curves of Schoolboys and Schoolgirls in Akita Prefecture

Abstract

OKAMURA, T., TAJTIMA, H., IIJIMA, Y., GoMI, H., TOMINAGA, S., NIBHINARI, H. and OYAMADA, T. Standard Blood Pressure Curves of Schoolboys and Schoolgirlsin Akita Prefecture. Tohoku J. exp. Med., 1981, 135 (4), 419-422 Bloodpressure of 251, 742 schoolboys and schoolgirls aged 7 to 18 years was measuredin the year 1970. Analyzing these data, the authors obtained the percentile valuesclassified by age. The lowest hypertensive systolic blood pressures, which arerepresented by the 95th percentile, are 123, 126, 128, 128, 129, 134, 138, 144, 149, 152, 155, and 154 mmHg in boys from 7 to 18 years of age, respectively.The corresponding values are 123, 126, 128, 130, 134, 138, 139, 143, 144, 142, 142, and 141 mmHg in girls of the same ages. Girls' systolic blood pressureis higher than that of boys between the ages of 10 and 13 years. After the 14thyear of age, girls' systolic blood pressure does not increase any further, whereasboy's blood pressure continuously increases until 18 years. The present resultsdiffer in the following two points from the study in USA (1977): 1) The uniformrise of blood pressure with age is not observed. 2) Blood pressure, especiallysystolic pressure, is higher in girls than in boys between the ages of 10 and 13years, although it is higher in boys thereafter until 18 years.-bloodpressure in children; percentile values of blood pressure; juvenile hypertension