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Body Mass Index and Timing of Pubertal Initiation in Boys

Body Mass Index and Timing of Pubertal Initiation in Boys ARTICLE Body Mass Index and Timing of Pubertal Initiation in Boys Joyce M. Lee, MD, MPH; Niko Kaciroti, PhD; Danielle Appugliese, MPH; Robert F. Corwyn, PhD; Robert H. Bradley, PhD; Julie C. Lumeng, MD Objective: To examine the association between body Main Outcome Measure: Onset of puberty at age 11.5 mass index (BMI [calculated as weight in kilograms di- years as measured by Tanner genitalia staging. vided by height in meters squared]) and timing of pu- bertal onset in a population-based sample of US boys. Results: Boys in the highest BMI trajectory (mean BMI z score at age 11.5 years, 1.84) had a greater relative risk Design: Longitudinal prospective study. of being prepubertal compared with boys in the lowest BMI trajectory (mean BMI z score at age 11.5 years, −0.76) Setting: Ten US sites that participated in the National (adjusted relative risk = 2.63; 95% confidence interval, Institute of Child Health and Human Development Study 1.05-6.61; P = .04). of Early Child Care and Youth Development. Conclusions: The relationship between body fat and tim- Participants: Of 705 boys initially enrolled in the study, ing of pubertal onset is not the same in boys as it is in information about http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA Pediatrics American Medical Association

Body Mass Index and Timing of Pubertal Initiation in Boys

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References (43)

Publisher
American Medical Association
Copyright
Copyright 2010 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
2168-6203
eISSN
2168-6211
DOI
10.1001/archpediatrics.2009.258
pmid
20124142
Publisher site
See Article on Publisher Site

Abstract

ARTICLE Body Mass Index and Timing of Pubertal Initiation in Boys Joyce M. Lee, MD, MPH; Niko Kaciroti, PhD; Danielle Appugliese, MPH; Robert F. Corwyn, PhD; Robert H. Bradley, PhD; Julie C. Lumeng, MD Objective: To examine the association between body Main Outcome Measure: Onset of puberty at age 11.5 mass index (BMI [calculated as weight in kilograms di- years as measured by Tanner genitalia staging. vided by height in meters squared]) and timing of pu- bertal onset in a population-based sample of US boys. Results: Boys in the highest BMI trajectory (mean BMI z score at age 11.5 years, 1.84) had a greater relative risk Design: Longitudinal prospective study. of being prepubertal compared with boys in the lowest BMI trajectory (mean BMI z score at age 11.5 years, −0.76) Setting: Ten US sites that participated in the National (adjusted relative risk = 2.63; 95% confidence interval, Institute of Child Health and Human Development Study 1.05-6.61; P = .04). of Early Child Care and Youth Development. Conclusions: The relationship between body fat and tim- Participants: Of 705 boys initially enrolled in the study, ing of pubertal onset is not the same in boys as it is in information about

Journal

JAMA Pediatrics – American Medical Association

Published: Feb 1, 2010

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