References for ultrasound staging of breast maturation, Tanner breast staging, pubic hair and menarche in Norwegian girls.

CONCLUSION: Thelarche occurred at a slightly younger age when assessed with ultrasound compared to clinical Tanner staging, although the two methods had a very good agreement when determining pubertal breast maturation. A significant decrease of 2.8 months in age at menarche was observed during the past decade in Norwegian girls.
PMID: 32140730 [PubMed - as supplied by publisher]

Source: The Journal of Clinical Endocrinology and Metabolism - March 5, 2020 Category: Endocrinology Authors: Bruserud IS, Roelants M, Oehme NHB, Madsen A, Eide GE, Bjerknes R, Rosendahl K, Juliusson PB Tags: J Clin Endocrinol Metab Source Type: research