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Male Pubertal Timing—Boys Will Be Men, but When?

Male Pubertal Timing—Boys Will Be Men, but When? Opinion EDITORIAL Vanessa A. Curtis, MD; David B. Allen, MD Puberty represents the complex transition from childhood to females, is unpredictable in males. In Danish children born adulthood characterized by linear growth acceleration and sex from 1930 to 1969, prepubertal BMI was inversely associated hormone–mediated physical changes followed by reproduc- with an earlier age of onset of growth spurt and PHV. More tive capability and skeletal recently, an association between higher childhood BMI and ear- maturity. The timing varies lier PHV was reported in boys with normal weight but not Related article page 860 widely and is affected by overweight. In contrast, a recent US study of a large, racially genetic and environmental diverse sample of US boys of whom 40% had overweight or obe- factors. Age at sexual maturity in females has progressively sity demonstrated a later appearance of pubic hair and testicu- declined during the past 2 centuries, with an earlier age of lar enlargement in boys with obesity when compared with boys pubertal onset and menarche in females being driven in part with normal weight or overweight. The discrepant findings by increased adiposity. suggest sex-associated and possibly racial/ethnic differences Timing of female puberty has attracted considerably http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA Pediatrics American Medical Association

Male Pubertal Timing—Boys Will Be Men, but When?

JAMA Pediatrics , Volume 173 (9) – Sep 22, 2019

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Publisher
American Medical Association
Copyright
Copyright 2019 American Medical Association. All Rights Reserved.
ISSN
2168-6203
eISSN
2168-6211
DOI
10.1001/jamapediatrics.2019.2306
Publisher site
See Article on Publisher Site

Abstract

Opinion EDITORIAL Vanessa A. Curtis, MD; David B. Allen, MD Puberty represents the complex transition from childhood to females, is unpredictable in males. In Danish children born adulthood characterized by linear growth acceleration and sex from 1930 to 1969, prepubertal BMI was inversely associated hormone–mediated physical changes followed by reproduc- with an earlier age of onset of growth spurt and PHV. More tive capability and skeletal recently, an association between higher childhood BMI and ear- maturity. The timing varies lier PHV was reported in boys with normal weight but not Related article page 860 widely and is affected by overweight. In contrast, a recent US study of a large, racially genetic and environmental diverse sample of US boys of whom 40% had overweight or obe- factors. Age at sexual maturity in females has progressively sity demonstrated a later appearance of pubic hair and testicu- declined during the past 2 centuries, with an earlier age of lar enlargement in boys with obesity when compared with boys pubertal onset and menarche in females being driven in part with normal weight or overweight. The discrepant findings by increased adiposity. suggest sex-associated and possibly racial/ethnic differences Timing of female puberty has attracted considerably

Journal

JAMA PediatricsAmerican Medical Association

Published: Sep 22, 2019

References