Results 211 to 220 of about 80,797 (250)
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Age at Menarche and Nutritional Supplementation
The Journal of Nutrition, 1995Retrospective data on age at menarche were collected for 832 Guatemalans 15-30 y in age to test whether exposure to a high energy and high protein supplement (Atole: 163 kcals/682 kJ and 11.5 g protein per cup or 180 mL) during childhood led to earlier menarche than did exposure to a low energy, no protein supplement (Fresco: 59 kcals/247 kJ in 180 mL).
A D, Khan +3 more
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American Journal of Physical Anthropology, 1978
AbstractThe purpose of this study was to elucidate the mean age at menarche in Icelandic girls and compare it with results from other Scandinavian populations as well as in other ethnic groups. The study was performed during the school year 1972–1973 on a cross‐sectional sample of 682 girls (aged 8.5 to over 17 years), constituting 9.5% of the girls ...
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AbstractThe purpose of this study was to elucidate the mean age at menarche in Icelandic girls and compare it with results from other Scandinavian populations as well as in other ethnic groups. The study was performed during the school year 1972–1973 on a cross‐sectional sample of 682 girls (aged 8.5 to over 17 years), constituting 9.5% of the girls ...
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Age at menarche among diethylstilbestrol granddaughters
American Journal of Obstetrics and Gynecology, 1995We interviewed 542 women whose mothers were in a randomized trial of diethylstilbestrol. Effects of diethylstilbestrol on the third generation were explored by ascertaining age at menarche for the women's daughters. A total of 123 daughters were > or = 10 years old (52 exposed and 71 unexposed).
A J, Wilcox +3 more
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Childhood growth and age at menarche
BJOG: An International Journal of Obstetrics & Gynaecology, 1996Objective To study the influence of birthweight, and weight and height at age seven years, on menarcheal age in a national sample of 1471 girls in England, Scotland and Wales.Methods We studied 1471 girls included in the MRC National Survey of Health and Development.
C, Cooper +4 more
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Age at Menarche: A Misunderstanding
Science, 1981Through a misinterpretation of historical data, the age of menarche in the 19th century is erroneously taken to have been 17 years. This error has resulted in unwarranted beliefs about change in female sexual maturation in the United States.
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Age at Menarche and Adolescent Alcohol Use
Journal of Youth and Adolescence, 2013Research has shown that early maturation is related to problematic alcohol use, yet the differential effect of early pubertal timing (i.e., younger age at menarche) on the onset of alcohol use and subsequent level of alcohol use has rarely been examined.
Verhoef, M. +3 more
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Size at Birth Predicts Age at Menarche
Pediatrics, 2001Objective. This study examines the relationship of intrauterine growth, measured by size and maturity at birth, to age at menarche, while also considering a wide range of other factors that may affect maturation. The research is motivated by the current debate about the importance of the prenatal environment as a ...
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The Decreasing Age at Menarche in Mexico
Journal of Pediatric and Adolescent Gynecology, 2016To estimate the current age at menarche in 2 urban areas from Mexico and to analyze secular trends in the age at menarche in Mexico City.Cross-sectional survey and secondary data analyses.(1) Samples of female students from Mexico City and from the city of Xalapa; and (2) national health surveys.(1) Pre- and postmenarcheal students, aged 8-17 years ...
M Luisa, Marván +3 more
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Seasonal Characteristics of and Age at Menarche
Chronobiology International, 1990Data from approximately 600 U.S. women were analyzed for seasonality in menarche. Data were converted to the ratio of observed (O) to expected (E) cases, based on an equal distribution of events over the year, per considered time span of the year. The greatest O/E ratio in menarche (1.55) occurred during January, followed by August (1.43) and July (1 ...
D L, Albright +4 more
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1984
Menarche constitutes in girls a precise index, both retro-spectively and prospectively, in the evolution of puberty. Many studies have been made of the menarcheal age (MA) as a single criterion, or as, a part of growth and development investigations. Most of the developed and some of the developing countries have established their mean menarcheal age ...
Fawzia H. Hussien +3 more
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Menarche constitutes in girls a precise index, both retro-spectively and prospectively, in the evolution of puberty. Many studies have been made of the menarcheal age (MA) as a single criterion, or as, a part of growth and development investigations. Most of the developed and some of the developing countries have established their mean menarcheal age ...
Fawzia H. Hussien +3 more
openaire +1 more source