Taranger J, Engström I, Lichtenstein H, Svennberg- Redegren I
Acta Paediatr Scand Suppl. 1976(258):121-35.
The pubertal development of 212 randomly selected Swedish urban children has been investigated as part of a prospective longitudinal study of growth and development. The timing and pattern of pubertal changes were in agreement with the findings in other contemporary studies. The good agreement with data on pubertal development reported in other investigations of Swedish children indicates that the present sample was representative of contemporary Swedish children. Two procedures of assessment of secondary sex characters - clinical examination and whole-body photography - have been compared and contrasted. A clinical examination is less laborious and resource-consuming and also has psychological advantages but should be supplemented in boys by the estimation of testicular volume (orchidometry). In girls the two methods have similar precision and reliability. The first pubertal changes may be observed before 9 years in girls (breast development) and before 10 years in boys (genital development). On average the first change takes place about one year earlier in girls than in boys. Peak height velocity (PHV) is an early event during puberty in girls and a relatively late event during puberty in girls and a relatively late one in boys, the sex difference in mean age being about two years. In girls, menarche is a late event, always occurring after PHV. At the age of 13-14 years some boys and girls have not yet begun theri pubertal development, while others have reached the adult stage.
作为一项关于生长发育的前瞻性纵向研究的一部分，对212名随机选取的瑞典城市儿童的青春期发育情况进行了调查。青春期变化的时间和模式与其他当代研究的结果一致。与瑞典儿童其他调查中报告的青春期发育数据的良好一致性表明，本样本代表了当代瑞典儿童。对评估第二性征的两种方法——临床检查和全身摄影——进行了比较和对比。临床检查不那么费力且耗费资源，并且在心理上也有优势，但在男孩中应通过睾丸体积测量（睾丸测量法）进行补充。在女孩中，这两种方法具有相似的精度和可靠性。女孩在9岁前（乳房发育）和男孩在10岁前（生殖器发育）可能会观察到首次青春期变化。平均而言，女孩的首次变化比男孩早约一年发生。身高增长高峰速度（PHV）在女孩青春期是一个早期事件，在男孩青春期是一个相对较晚的事件，平均年龄的性别差异约为两岁。在女孩中，月经初潮是一个较晚的事件，总是发生在PHV之后。在13 - 14岁时，一些男孩和女孩尚未开始青春期发育，而另一些人则已达到成年阶段。
