Results 31 to 40 of about 40,288,792 (267)
Objective over the last few decades there has been a progressive decline in the average age of onset of pubertal development stages in both sexes. The increase in the prevalence of childhood obesity seems to play an important role in this phenomenon ...
Vittorio Ferrari +5 more
doaj +1 more source
SummaryThe age at menarche in girls in schools in Colombo city, Ceylon, in 1968, was estimated by probit analysis as 13·72 ± 0·12 years. This figure is higher than that of 12·84 years obtained in 1950 by a similar analysis. The exact date at menarche was forgotten by 15·5% of the sample but all alleged they remembered the year of age at which it was ...
L, David, C H, Jayewardene
openaire +2 more sources
Data on age at menarche have been collected, using the status quo method, among 1246 Tahitian girls attending school. The median age, estimated by probits, is 12.75 SD 1.76. The girls of the rural districts have a higher median age (13.08 SD 1.97) than the girls of Papeete (12.61 SD 1.47). The results were compared with data collected among other girls
J, Ducros, A, Ducros
openaire +2 more sources
Age at menarche and cancer risk at adulthood
Aim: The aim was to evaluate the association between age at menarche and cancer using a nationally representative sample of Brazilian women. Methods: Data from the Brazilian Health Survey (PNS), a nationally representative survey conducted in 2013 (n ...
André O. Werneck +6 more
doaj +1 more source
Background Over the past few decades, more studies have suggested that the age at menarche (AAM) has continued to decline. However, the AAM for women in resource-constrained areas is not clear. Moreover, the association between the Chinese famine and AAM
Xueyan Wu +10 more
doaj +1 more source
Relation of Age at Menarche to Physical Activity [PDF]
The aim of this study is to determine whether regular physical activity during early puberty is influential in preventing early menarche. This cross sectional study was carried out on 102 post-menarcheal girls aged 11–20 (14.79±0.33).
Egreta Peja, Ela Tase
doaj
Context Evidence about the effect of age at menarche (AAM) on blood pressure (BP) has largely been drawn from studies in developed countries. Studies in developing countries are expanding recently but have not been summarised. Objective To systematically
Gaili Wang +5 more
doaj +1 more source
Background The TNF, LTA and TNFRSF1B genes have been implicated in various traits related to menarche and menopause. Aim To analyse the TNF, LTA and TNFRSF1B genes for their association with ages at menarche (AM) and natural menopause (ANM). Subjects and
Volodymyr Dvornyk +2 more
doaj +1 more source
Effect of Age at Menarche on Obesity Epidemic [PDF]
Menarche is a sign of puberty and the beginning of ovarian and other endocrine functions relating to reproduction. It is an important event demonstrating the end of childhood and the start of reproductive years for each woman that is preceded by the ...
Saleh Jafarian
doaj +1 more source
Body structure and maturation – the association with environmental factors
The main objective of the study was to determine the relationship between physique, maturation and some environmental factors. The study was conducted in Warsaw, between 2012 and 2013 in randomly selected schools. The material included 171 girls, aged 12-
Nieczuja-Dwojacka Joanna +3 more
doaj +1 more source

