RESUMEN
This study determined the percentiles of systolic and diastolic blood pressure and the prevalence of hypertension among 789 primary-school children aged 7-12 years in the city of Eghbalieh, Islamic Republic of Iran. Mean systolic and diastolic blood pressure increased with increasing age in both sexes. There was no significant difference between mean systolic pressure in boys and girls overall, but a significant difference was found between boys and girls in 3 age groups. The prevalence of systolic and diastolic hypertension overall was 6.5% and 12.8% respectively. The mean systolic and diastolic blood pressure of boys and girls in all age groups were significantly lower than the Second Task Force on Blood Pressure Control in Children scale