Iranian Journal of Pediatrics
Tehran University of Medical Sciences Press
Vol. 22, No. 2, 2012, pp. 223-230
Bioline Code: pe12039
Full paper language: English
Document type: Research Article
Document available free of charge
Iranian Journal of Pediatrics, Vol. 22, No. 2, 2012, pp. 223-230
© Copyright 2012 - Iran J Pediatrician
Blood Pressure Standards for Shiraz (Southern Iran) School Children in Relation to Height|
Ayatollahi, Seyyed Mohammad-Taghi & Zare, Marzie
Objective: This study aims at providing local reference values for blood pressure by height and determining
distribution pattern of systolic and diastolic blood pressure in 6.5-11.5 elementary school children for the
first time in Shiraz (Southern Iran).
Methods: Height, systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured with
standard methods in 2270 healthy school children (1174 boys, 1096 girls) who were selected by multi-stage
random sampling in 2003-2004 academic years. We produced blood pressure percentiles by height
percentiles using Healy-Rasbash-Yang method.
Findings: The blood pressure (both systolic and diastolic) tends to increase with age, but after adjusting the
measurements for height, no significant correlation was found between either systolic blood pressure or
diastolic blood pressure and age (r=-0.03 and P=0.15 for systolic blood pressure, r=-0.005 and P=0.8 for
diastolic blood pressure). Then systolic and diastolic blood pressure percentile values by age and height
percentiles, and blood pressure smoothed centiles by height in 6.5-11.5 years school children were derived.
Conclusion: Due to genetic, cultural and environmental differences among populations, it is suggested to use
local blood pressure standards in Iran. We produced blood pressure percentiles by height instead of age
because it seems that it would lead to better evaluation for real hypertensive diagnosis.
Blood pressure; Height; Age; Children; Local Reference Value; Percentile
Alternative site location: http://diglib.tums.ac.ir/pub/