References for Ultrasound Staging of Breast Maturation, Tanner Breast Staging, Pubic Hair, and Menarche in Norwegian Girls.

The Journal of Clinical Endocrinology and Metabolism
Ingvild Særvold BruserudPetur B Juliusson

Abstract

Discriminating adipose and glandular tissue is challenging when clinically assessing breast development. Ultrasound facilitates staging of pubertal breast maturation (US B), but has not been systematically compared to Tanner breast (Tanner B) staging, and no normative data have been reported. To present normative references for US B along with references for Tanner B, pubic hair (PH), and menarche. A cross-sectional sample of 703 healthy girls aged 6 to 16 years were examined. Breast development was determined with US B and Tanner B staging. Tanner PH and menarcheal status were recorded. The age distributions of entry in US B, Tanner B, and PH stages and menarche were estimated with generalized linear and generalized additive models with a probit link. Method agreement was tested with weighted Cohen's kappa. The median (±2SD) ages for thelarche, US B2 and Tanner B2, were 10.2 (7.7, 12.8) and 10.4 (8.0, 12.7) years. The median (±2SD) ages at Tanner PH2 and menarche were 10.9 (8.5, 13.3) and 12.7 (11.0, 16.2) years. Cohen's kappa of agreement (95% confidence interval) between US B and Tanner B was 0.87 (0.85-0.88). When the methods disagreed, US B was usually more advanced. Thelarche occurred at a slightly younger age when assess...Continue Reading

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Citations

Sep 20, 2020·Annals of Clinical and Translational Neurology·Omar HikmatLaurence A Bindoff
Sep 23, 2020·The Journal of Clinical Endocrinology and Metabolism·Andre MadsenPetur B Juliusson
Nov 19, 2020·The Journal of Clinical Endocrinology and Metabolism·Alan D Rogol
Aug 21, 2021·Biology of Reproduction·Cecilie SvanesSvein Magne Skulstad

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Methods Mentioned

BETA
GAM

Software Mentioned

R
Statistical Package for Social Sciences ( SPSS
mgcv

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