Results 41 to 50 of about 80,797 (250)
Annals of Human Biology, 1997 Age at menarche and menstrual symptoms were recorded in a sample of Thai schoolgirls in Bangkok. Using a random sampling proportional to size from this target population, structured questionnaires were offered to a sample of 15998 girls of grades 4-12. Fifty-six per cent of the study population was menarcheal during the time of study. Average mean ages
S, Chompootaweep +4 more
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Genetic Regulation of Puberty Timing in Humans. [PDF]
, 2015 Understanding the regulation of puberty timing has relevance to developmental and human biology and to the pathogenesis of various diseases. Recent large-scale genome-wide association studies on puberty timing and adult height, body mass index (BMI) and ...
Day, Felix R, Ong, Ken K, Perry, John RB
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Body structure and maturation – the association with environmental factors
Anthropological Review, 2017 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
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Association of timing of menarche with depressive symptoms and depression in adolescence:Mendelian randomisation study [PDF]
, 2017 Background Observational studies report associations between early menarche and higher levels of depressive symptoms and depression. However, no studies have investigated whether this association is causal. Aims To determine whether earlier menarche is a
Bonilla, Carolina +4 more
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Frontiers in Genetics, 2022 A fair number of epidemiological studies suggest that age at menarche (AAM) is associated with depression, but the reported effect sizes are small, and there is evidence of residual confounding.
Raphael Hirtz +9 more
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Age at menarche in rural France
Annals of Human Biology, 1979 Data upon age at menarche have been collected among 254 schoolgirls of a relatively endogamous rural population in central France. The median age at menarche estimated by probits was 13.05+/-0.18, SD1.42. This accords well with results obtained from urban samples in the years 1965-68. Both rural and urban samples give a median age 0.5 year earlier than
E, Crognier, M A, Tavares Da Rocha
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Biological Reviews, EarlyView.ABSTRACT Human life history is derived compared to that of our closest living relatives, the great apes. It has been suggested that these derived traits are causally related to aspects of our ecology, social behaviour and cognitive abilities. However, resolving this requires that we know the evolutionary trajectory of our distinctive pattern of growth,
Paola Cerrito +2 more
wiley +1 more source
The Age At Menarche In Nigerian Adolescents From Two Different Socioeconomic Classes [PDF]
, 2008 Menarcheal age was studied in 900 girls, half of which were from middle class families and the other half from low income class families from the Niger delta region of Nigeria.
Ofuya, Zuleat Millicent
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Epileptic Disorders, EarlyView.Abstract Objective To evaluate the efficacy of vagus nerve stimulation (VNS) as an adjunctive treatment in pediatric patients with treatment‐resistant epilepsy during the transition to adolescence. Methods We performed a retrospective cohort study of 30 children (ages 2–18 years) with medication‐resistant epilepsy who underwent VNS implantation between
Jonadab dos Santos Silva +4 more
wiley +1 more source
Weight and age at menarche. [PDF]
Archives of Disease in Childhood, 1989 In the National Child Development Study (1958 cohort) information on their age at menarche and their weights and heights measured at 7, 11, and 16 years was available for 4427 girls. The distribution of age at menarche was not influenced by social class. Weight adjusted for height did not play an important part in the timing of sexual maturation of the
O, Stark, C S, Peckham, C, Moynihan
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