Objectives. To determine the mean age of pubertal stages of breast development and
menarche, and the influence of nutrition and ethnicity on pubertal onset in primary school …

Background: Globally, there is a secular trend towards the reduced age for sexual maturity
and menarche. This study aimed to determine the current age and factors associated with …

Puberty is the gradual transition period between childhood and adulthood. Many factors may
contribute to the onset of puberty. The objective of the study was to determine the age of …

Background: Secondary sexual characteristics appear at puberty with rapid physical,
emotional, and cognitive developments. In girls, thelarche is usually the first sign of puberty …

This study aimed to assess the timing of sexual maturation (breast development and
menarche occurrence) among sub‐Saharan African adolescent girls from rural areas. In the …

Menarche is the first menstrual period. It is the final event in the physical manifestation of
gonadal development. A study in Europe found that the median age of menarche was 12 …

Aim: This study was carried out to determine the effect of nutrition and socioeconomic status
(SES) on puberty. Settings and Design: It is a descriptive, cross-sectional study among …

Methods The cross-sectional study was undertaken in July 2005, on 788 healthy 7-16 years
old girls in Gorgan, the most populous city of Golestan province in northern Iran. Physical …

Objectives: The objectives of our study were to determine the mean age of onset of thelarche
and menarche, to determine the ages of each stage of puberty and to investigate if there are …

This is a cross-sectional study of infants seen in the Nitel Health Centres in Lagos metropolis
and Mushin Primary Health Care Centres in the Mushin Local Government Area of Lagos …