„it's recognised as anything prepubescent, so 0 to around 9 to 13 (depending on when puberty starts for the individual) is more accurate than 4 to 9.“ The age range 9 to 13 years is wrong for girls. Girls do not start puberty with 9 to 13 years but with 7 to 11 years if one follows the mainstream view about puberty. According to a metaanalysis the median age for the beginning of the pubertal growth spurt of girls is 8.3 years. According to a metaanalysis the median age for the beginning of Tannner Stage 2 of breast development is 9,8 years. In the past 20 years, these values may have dropped by a few more months. One half of the girls reach these common markers for the beginning of puberty eaerlier, the other half later. More informations: Open letter to Michael Seto, James Cantor, Ray Blanchard, Kenneth Zucker, the American Psychiatric Association (APA), and the Archives of Sexual Behavior on age at puberty and age in the Tanner stadiums https://boy.chat/messages/1529314.htm |