the present study aimed to evaluate the effects of ramadan fasting on the level of sex hormones in girls between 9-13 years before age at menarche.this study was conducted on a sample of 58 subjects (age range: 9-13 years), who were divided intotwo groups of fasting (n=31) and non-fasting (n=27). the levels of follicle-stimulating hormone(fsh), luteinizing hormone (lh), progesterone and estradi...

OBJECTIVE To assess secular trends in menarcheal age between 1973 and 1994 and to determine whether childhood levels of height, weight, and skinfold thicknesses can account for racial (white/black) differences in menarcheal age. METHODS Data from 7 cross-sectional examinations of school-aged children, with menarcheal age obtained through interviews, were used for both cross-sectional (11 218 ...

OBJECTIVE To assess the average age of menarche in Pakistani girls from different socioeconomic backgrounds. METHODOLOGY This was a cross sectional study design carried out on female students studying in different schools of Karachi in 2014. Girls aged 10-14 years age were included. Schools from all three socio economic strata were selected through random sampling technique from a list of sch...

he most important event in the whole process of female puberty is the onset of cyclic menses (menarche). The age of the menarche varies in different part of the world and is known to be influenced by genetic, socio-economic status, and environmental conditions, body status and level of education,1 age at menarche was first calculated in mid 19th century in Denmark,2 since then, many authors hav...

BACKGROUND The age of menarche has been associated with metabolic and cardiovascular disease, as well as cancer risk. The decline in menarcheal age over the past century may be partially attributable to increased exposure to endocrine disrupting chemicals (EDCs). METHODS We assessed the influence of 26 phenol and phthalate biomarkers on the timing of menarche in a longitudinal cohort of Chile...

Strong evidence exists of a downward secular trend in the age at menarche; which appears to be associated with improved health and nutritional circumstances over the past two centuries. The aim of this study was to determine the mean age at menarche of Irish girls in 2006, as this has not been verified since 1986. A nationally representative sample of Irish girls (n = 4720, age 10-18 years) was...

OBJECTIVE To investigate associations between dietary intakes throughout childhood and age at menarche, a possible indicator of future risk of disease, in a contemporary cohort of British girls. DESIGN Diet was assessed by FFQ at 3 and 7 years of age, and by a 3 d unweighed food diary at 10 years. Age at menarche was categorised as before or after 12 years 8 months, a point close to the media...

In a cross-sectional retrospective study of 2087 Ghanaian school girls in various educational institutions in the Kumasi district, Ashanti region, Ghana, the mean menarcheal age was found to be 13.98 +/- 1.42 years. Differences in the menarcheal age of the girls was found to be significantly correlated to social class, parents ethnic origin, educational institution and home living area (P = 0.0...

The aim of this study was to estimate pubertal age and to assess the level of physical development of preterm girls with defective vision. The study material – anthropometric data (body height and weight, BMI) and information on the age of menarche were collected from 155 subjects with defective vision (partially sighted and blind). Median age at menarche was estimated by probit analysis. The g...

PURPOSE The study of the relationship ,between the age at menarche and socioeconomic status in a rural area in Sudan. WORK METHOD This was a cross-sectional descriptive study conducted in Altadamon and Eldubha areas in the northern state of Sudan during year 2006. It included 182 girls of age between 13 to 18 years in elementary and secondary school. WORK RESULTS The mean age at menarche fo...