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男性吸烟、女性初潮年龄对骨密度有一定的影响。Smoking in male and age of menarche in female influenced BMD.

初潮年龄平均16.19岁，略晚于我国妇女正常初潮平均年龄。The menarche age averaged 16.19 years, a bit later than normal.

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这种关系不能用儿童期肺功能或月经初潮年龄来解释。The association was not explained by childhood lung function or age at menarche.

普遍男子会出现遗精的现象，而女子会出现初潮。Consequently man has sperm and experiences seminal emission, and woman has menarche.

而事实上，两个小组发现，其他几个和身高有关的基因也能预测初潮的年龄。Indeed, two teams found that several other genes linked to height also predict age at menarche.

女性从月经初潮到形成规律的月经周期大概需要2年左右的时间。It can take up to 2 years from menarche for a girl's body to develop a regular menstrual cycle.

第二性征发育和月经初潮年龄存在城乡差异。Secondary sexual characteristics development and age at menarche are different in urban and rural girls.

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结论儿童期的肥胖、月经初潮年龄和青春期的肥胖之间可能存在联系。Conclusion There may be correlation among obesity in children, timing of menarche and obesity in puberty.

月经于13岁开始，一直到发生月经过多症以前，经期正常。Menarche occurred at 13 years of age and the menstrual cycle remained within normal limits until the onset of menorrhagia.

结果，女孩子初潮时间提前，并且形成对肉体关系的依赖，而男孩子则渐渐变得好斗，成为性侵犯者。As a result, girls reach menarche sooner and form clingy relationships, while boys become aggressive and sexually exploitive.

结果男女膝、踝部各长骨干骺融适时间、女生月经初潮时间较以往文献报道结果有提前的趋势。Results The epiphysis diaphysis time in both male and female, and menarche in girls showed earlier than that previously reported.

结果男女膝、踝部各长骨干骺融合时间、女生月经初潮时间较以往文献报道结果有提前的趋势。Results The epiphysis-diaphysis time in both male and female, and menarche in girls showed earlier than that previously reported.

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如果是真的早熟，就会有初潮，这个过程是跟荷尔蒙的产生相对应的。If puberty is occurring earlier, one would think menarche should also, since the process responds to the same cascade of hormones.

女孩们在9岁到16岁之间经历初潮，而这些年龄的差异中，其中一到三个月的差异是由基因LIN28B差异导致的。Girls go through menarche between the ages of 9 and 16, and the variations in LIN28B accounted for just one to three months of these differences.

呼和浩特地区4个群体女性月经初潮月分布具有双峰特征，且均以夏季初潮率为最高。The monthly distribution of menarche of the 4 groups of females in Huhhot has shown the features of double-peaks with the highest frequency in summer.

目的探讨初潮年龄与中心性肥胖之间的关系，为儿童肥胖的干预研究提供科学依据。Objective To explore the correlation between timing of menarche and central obesity, and to provide scientific evidence for the intervention of childhood obesity.

目的了解大学生月经初潮和首次遗精状况，分析与居住地的关系和心理变化情况。Objective To study the occurrences of menarche and first nocturnal emission and their relation to habitation, and psychological evolution a-mong university students.

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采用概率单位回归法及多元回归分析法，进行月经初潮平均年龄及性发育与体质关系的研究。Probability unit regression and multiple regression methods were used to analyze the relationship between average menarche age, sex development and body constitution.

方法回顾性调查马鞍山市初三年级女生的月经初潮年龄，并测量身高、体重、腰围和臀围。Methods Timing of menarche was retrospective investigated among girls in grade 3 in junior high schools in Maanshan and their height, weight, waist and hip were measured.

小学三年级时体型为超重或肥胖的儿童，其月经初潮年龄偏早，在青春中后期的BMI、腰围和腰臀比也较高。Menarche timing was earlier in the children who were overweight or obesity in grade 3 in primary school, and their BMI, waist and waist-hip ratio were higher in puberty as well.