Blood pressure measurement in children aged 6 to 15 years--the Nahariya Study.

A total of 5,323 school students aged 6 to 15 years in the city of Nahariya, Israel, had their blood pressure measured during the 1981-82 school year. Height, weight, sex, region of birth and parent's region of birth were also recorded. Charts containing selected percentiles of blood pressure were developed, and distribution curves were drawn. Mean systolic blood pressure increased with age in both sexes. The diastolic pressure, however, remained unchanged. The mean systolic pressures were slightly higher than those found in Bogalusa and than the pooled means published in the recent report of the Task Force on Blood Pressure Control in Children, but lower than those of most other studies. The diastolic pressures were higher than those of the Bogalusa study; they were slightly higher than the pooled means reported by the Task Force for children aged 6 to 9, and for above these ages they were lower by 3 to 7 mm Hg. The selected percentiles of both systolic and diastolic blood pressure in both sexes were lower than those in the charts published initially by the Task Force in 1977 but were very close to those published in their second report in 1987. The mean blood pressure levels were not associated with the parents' region of birth. A highly significant correlation between systolic blood pressure and body mass (as expressed by weight or Quetelet's index) was found.