Rah Jee H, Shamim Abu Ahmed, Arju Ummeh T, Labrique Alain B, Rashid Mahbubur, Christian Parul
Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
J Health Popul Nutr. 2009 Dec;27(6):802-7. doi: 10.3329/jhpn.v27i6.4332.
Menarche is an important milestone in the development of female adolescents. The study assessed the age at menarche using recall, its seasonality, and association with marital and nutritional status (using mid-upper arm circumference [MUAC]) among 3,923 female adolescents aged 12-19 years in a rural area of Bangladesh. At the time of assessment, most (88%) adolescents had attained menarche at the mean (standard deviation [SD]) age of 12.8 (1.4) years. Age of onset of menarche among married adolescents (13%) occurred earlier than in those who were unmarried (12.6 +/- 1.3 years vs 12.9 +/- 1.4 years, p < 0.01). Age at menarche was negatively associated with MUAC after adjusting for age and marital status (beta = -0.10, p < 0.01). More than 50% of the adolescents had an onset of menarche during winter (chi2 = 634.97; p < 0.001), with peaks in December and January. In this rural population, the current age at menarche was found to be slightly lower than the previous estimates of 13.0 years in Bangladesh. An early onset of menarche was associated with season and better nutritional status of the female adolescents and may be associated with early marriage.
月经初潮是女性青少年发育过程中的一个重要里程碑。该研究通过回忆法评估了月经初潮的年龄、其季节性，以及孟加拉国农村地区3923名12至19岁女性青少年的月经初潮年龄与婚姻和营养状况（使用上臂中段周长[MUAC]）之间的关联。在评估时，大多数（88%）青少年的月经初潮平均（标准差[SD]）年龄为12.8（1.4）岁。已婚青少年（13%）的月经初潮年龄早于未婚青少年（12.6±1.3岁对12.9±1.4岁，p<0.01）。在调整年龄和婚姻状况后，月经初潮年龄与MUAC呈负相关（β=-0.10，p<0.01）。超过50%的青少年在冬季迎来月经初潮（χ2=634.97；p<0.001），12月和1月出现峰值。在这个农村人群中，目前的月经初潮年龄被发现略低于孟加拉国先前估计的13.0岁。月经初潮提前与季节以及女性青少年更好的营养状况有关，并且可能与早婚有关。
