Chie W C, Liu Y H, Chi J, Wu V, Chen A
Department of Public Health, College of Public Health, National Taiwan University, Taipei, ROC.
J Formos Med Assoc. 1997 Jun;96(6):446-50.
The rapid increase of breast cancer in Taiwan has prompted the authors to evaluate the predictive factors of early menarche among contemporary Taiwanese girls. A total of 895 four-grade girls from eight elementary schools in Taipei City and County were identified as a closed cohort from the first semester of 1993. Data were collected from self-administered questionnaires and school records. A total of 799 girls who had not menstruated in the first year remained in the group through 1994. The effects of potential predictive factors were assessed by logistic regression. Among the 799 girls followed, 69 (8.6%) had first menstruation between the fourth and fifth grades. Height, weight, body mass index and maternal early onset of menarche were positively related to the onset of menarche within the preceding year. Energy consumption during exercise showed only moderate association after being adjusted for age and weight. Calorie intake from junk food was not associated with early menarche within the preceding year. Poor interpersonal family relationships and stressful life events also showed a moderate association with early menarche. The data obtained supported the hypothesis that height, weight, body mass index and maternal early menarche are positive predictive factors of early menarche. The effects of exercise and childhood stress are less prominent.
台湾地区乳腺癌发病率的快速上升促使作者对当代台湾女孩初潮过早的预测因素进行评估。从台北市和台北县八所小学挑选出895名四年级女生，作为一个封闭队列，从1993年第一学期开始跟踪观察。数据通过自填问卷和学校记录收集。到1994年时，共有799名在第一年尚未月经初潮的女生留在该队列中。通过逻辑回归分析评估潜在预测因素的作用。在跟踪观察的799名女生中，有69名（8.6%）在四、五年级时经历了月经初潮。身高、体重、体重指数以及母亲初潮过早与上一年月经初潮的发生呈正相关。在对年龄和体重进行校正后，运动时的能量消耗仅显示出中等程度的关联。垃圾食品的热量摄入与上一年月经初潮过早无关。不良的家庭人际关系和压力性生活事件也与月经初潮过早呈现中等程度的关联。所获得的数据支持了以下假设：身高、体重、体重指数以及母亲初潮过早是月经初潮过早的正向预测因素。运动和童年压力的影响则不太显著。
