Chavarro J, Villamor E, Narváez J, Hoyos A
Harvard School of Public Health, Department of Nutrition, Boston, Massachusetts 02115, USA.
Ann Hum Biol. 2004 Mar-Apr;31(2):245-57. doi: 10.1080/03014460310001652239.
Age at menarche is an important developmental milestone known to be modified by social and environmental factors. The determinants and potential change over time of age at menarche in Colombia are not well documented.
To obtain a current estimate of age at menarche in Colombia and to examine the associations between socio-demographic characteristics and age at menarche.
Between 1998 and 2001, we obtained recalled age at menarche, socio-demographic characteristics, and physical activity information in a group of 3206 students at the National University of Colombia who completed a self-administered questionnaire. We examined the cross-sectional associations between mean age at menarche and migratory pattern, parental education, socio-economic status indicators, practice of physical activity, and year of birth using linear regression.
Mean age at menarche (+/- SD) was 12.68 +/- 1.31. In a multivariate adjusted regression model, age at menarche was positively associated with family size and the practice of at least 2 daily hours of physical activity, and was inversely related to urbanization level, socio-economic status, and year of birth.
Socio-economic status is a strong predictor of menarche in this population. There appears to be a trend towards earlier menarche by year of birth.
初潮年龄是一个重要的发育里程碑，已知会受到社会和环境因素的影响。哥伦比亚初潮年龄的决定因素及其随时间的潜在变化尚无充分记录。
获取哥伦比亚当前的初潮年龄估计值，并研究社会人口学特征与初潮年龄之间的关联。
1998年至2001年间，我们在一组3206名哥伦比亚国立大学的学生中获取了初潮年龄回忆信息、社会人口学特征以及体育活动信息，这些学生完成了一份自填式问卷。我们使用线性回归研究了初潮平均年龄与迁移模式、父母教育程度、社会经济地位指标、体育活动习惯以及出生年份之间的横断面关联。
初潮平均年龄（±标准差）为12.68±1.31。在多变量调整回归模型中，初潮年龄与家庭规模以及每天至少进行2小时体育活动的习惯呈正相关，与城市化水平、社会经济地位和出生年份呈负相关。
社会经济地位是该人群初潮的有力预测因素。按出生年份来看，初潮似乎有提前的趋势。
