Reference data for testicular volume measured with ultrasound and pubic hair in Norwegian boys are comparable with Northern European populations.
puberty
secular trend
testis
ultrasonography
Journal
Acta paediatrica (Oslo, Norway : 1992)
ISSN: 1651-2227
Titre abrégé: Acta Paediatr
Pays: Norway
ID NLM: 9205968
Informations de publication
Date de publication:
08 2020
08 2020
Historique:
received:
07
10
2019
revised:
06
12
2019
accepted:
02
01
2020
pubmed:
4
1
2020
medline:
8
5
2021
entrez:
4
1
2020
Statut:
ppublish
Résumé
To estimate references for testicular volume measured with ultrasound and Tanner stages of pubic hair in Norwegian boys, and to compare the timing of puberty with data from similar populations. Testicular volume was derived from ultrasound measurements of testicular volume in a cross-sectional study of 514 healthy boys. A continuous testicular volume for age reference curve was estimated with the LMS method. Tanner stages for pubic hair were clinically assessed in 452 boys. Age references for pubertal milestones were estimated with probit regression. Puberty onset, defined by an ultrasound testicular volume of 2.7 mL, equivalent to an orchidometer volume of 4 mL, occurred at a mean (SD) age of 11.7 (1.1) years. The reference range was 9.7 (3rd) to 13.7 years (97th percentile). Pubic hair (Tanner stage 2) appeared on average at 11.8 (1.2) years with a corresponding reference range of 9.5-14.1 years. The references for testicular volume measured with ultrasound are continuous in age and allow for the quantification of pubertal development. The age distribution of reaching pubertal milestones was comparable with data from other Northern European countries.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1612-1619Informations de copyright
© 2020 The Authors. Acta Paediatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Paediatrica.
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