Iranian Journal of Pediatrics
Tehran University of Medical Sciences Press
Vol. 18, No. 1, 2008, pp. 38-46
Bioline Code: pe08006
Full paper language: English
Document type: Research Article
Document available free of charge
Iranian Journal of Pediatrics, Vol. 18, No. 1, 2008, pp. 38-46
© Copyright 2008 - TUMS PUBLICATIONS
Longitudinal Pattern and Reference Values of Obesity Indices of Infants in Jahrom (Southern Region of), Iran|
Heidari, Seyed Taghi; Vakili, Mohammad Ali & Emamghorashi, Fatemeh
Obesity (scaled weight-by-height index) charts of a cohort of 597 healthy infants (391 boys and 206 girls) living in Jahrom (Southern Iran) are presented.
Material & Methods:
An adjusted weight-for-height was used to develop power type obesity indices, Ip=W/Hp. Polynomial modeling was used by applying HRY (Healy, Rasbash, Yang) nonparametric method to estimate age-related smoothed centiles of obesity.
The optimal value of p was found to be 2.5 for girls and 2 for boys. No more than cubic and quadratic polynomials were needed to fit obesity-for-age smoothly for infants. Infant's obesity increases from birth to six months of age and decreases later on to the age of 20 months when it becomes stable.
Using age–dependent obesity index (scaled weight by height) is an appropriate index which explores the degree of fatness. A local standard for assessing obesity in clinical practice as well as community health programs in Iran is of urgent need; our data serve this purpose.
Obesity index, Infants, Age, Reference values, Obesity
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