Smoking in male and age of menarche in female influenced BMD.
男性吸烟、女性初潮年龄对骨密度有一定的影响。
Indeed, two teams found that several other genes linked to height also predict age at 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。
Menarche has sooner or later, is generally believed that a great relationship and genetic.
初潮有早晚，一般认为和遗传有很大关系。
Urban women in age at menarche to a maximum of 15 years, rural women to 16 years of age the most.
城市女性初潮年龄以15岁为最多，农村妇女以16岁为最多。
From the above statistics to see that the urban girls as early as the age of menarche in rural girls.
从上面的统计数字要看出，初潮的年龄城市女孩早于农村女孩。
Sooner or later menarche, cohabitation letters in urban and rural areas there is a certain relationship.
初潮早晚，同居信在城市和农村也有一定关系。
Young girls and their parents are very concerned about the time menarche and hope menarche time is normal.
少女们以及她们的家长都非常关心初潮的时间，希望初潮时间是正常的。
But in the past 40 years, there hasn't been any real change in age of menarche, which remains at just over 12 years.
但是在过去的40年间，初潮发生的年龄段并没有实质性的改变，还是在12岁左右。
The body fat and lean body weight of girl students after menarche were greater than those of the same age before menarche.
女生初潮后的体脂和去脂体重均大于初潮前同一年龄的女生。
Conclusion: Not only the genetic factors but also the uterine environment and the development in childhood are related to the age at menarche.
结论女孩初潮年龄不仅与遗传因素有关，而且与宫内环境和儿童时期的发育有关。
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.
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。
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。
Early menarche, late menopause, or late 1st pregnancy increases risk. Women who have a 1st pregnancy after age 30 are at higher risk than those who are nulliparous.
初潮早，停经晚，或首次妊娠晚，均可增加癌症危险。30岁后怀第一胎的妇女，其危险性要高于未产妇。
Early menarche, late menopause, or late 1st pregnancy increases risk. Women who have a 1st pregnancy after age 30 are at higher risk than those who are nulliparous.
初潮早，停经晚，或首次妊娠晚，均可增加癌症危险。30岁后怀第一胎的妇女，其危险性要高于未产妇。
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