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简介：AbstractBackground:China’s two-child policy has led to a trend of aging in pregnancy which was associated with adverse outcomes. This study aimed to identify the clinically cutoff maternal age for adverse obstetric outcomes in China.Methods:This secondary analysis of a multicenter retrospective cohort study included data of childbearing women from 39 hospitals collected in urban China during 2011 to 2012. Logistic regression was used to assess the adjusted odds ratios (aOR) of adverse outcomes in different age groups in comparison to women aged 20 to 24 years. The adjustments included the location of the hospital, educational level, and residence status. Clinically cutoff age was defined as the age above which the aOR continuously become both statistically (P < 0.05) and clinically (aOR > 2) significant.Results:Overall, 108,059 women were recruited. In primiparae, clinically cutoff maternal ages for gestational diabetes (aOR: 2.136, 95% confidence interval [CI]: 1.856-2.458, P < 0.001), placenta previa (aOR: 2.400, 95% CI: 1.863-3.090, P < 0.001), cesarean section (aOR: 2.511, 95% CI: 2.341-2.694, P < 0.001), hypertensive disorder (aOR: 2.122, 95% CI: 1.753-2.569, P < 0.001), post-partum hemorrhage (aOR: 2.129, 95% CI: 1.334-3.397, P < 0.001), and low birth weight (aOR: 2.174, 95% CI: 1.615-2.927, P < 0.001) were 27, 31, 33, 37, 41, and 41 years, respectively. In multiparae, clinically cutoff ages for gestational diabetes (aOR: 2.977, 95%CI: 1.808-4.904, P < 0.001), hypertensive disorder (aOR: 2.555, 95% CI: 1.836-3.554, P < 0.001), cesarean section (aOR: 2.224, 95% CI: 1.952-2.534, P < 0.001), post-partum hemorrhage (aOR: 2.140, 95% CI: 1.472-3.110, P < 0.001), placenta previa (aOR: 2.272, 95% CI: 1.375-3.756, P < 0.001), macrosomia (aOR: 2.215, 95% CI: 1.552-3.161, P < 0.001), and neonatal asphyxia (aOR: 2.132, 95% CI: 1.461-3.110, P < 0.001) were 29, 31, 33, 35, 35, 41, and 41 years, respectively.Conclusions:Early cutoff ages for gestational diabetes and cesarean section highlight a reasonable childbearing age in urban China. The various optimized cutoff ages for different adverse pregnancy outcomes should be carefully considered in childbearing women.

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简介：Ahighlyselective,openaccess,internationaljournalpublishinginnovativeresearchinallareasofopticsandphotonicsAdvancedPhotocnicsisco-publishedbyChineseLaserPress(CLP)atShanghaiInstituteofOpticsandFineMechanics(SIOM)andSPIE.ThefirstbirmonthlyissuewillbepublishedinJanuary2019.AuthorBenefits:·Rigorousandtimelypeerreviewprocess·Professionalcopyeditingandtypesetting·Waivedopenaccessfeeinthefirstyear.

简介：影片讲述了在冰河世纪这个充满惊喜与危险的蛮荒时代,因为一名突如其来的人类婴儿，让三只性格迥异的动物凑在一起的故事。其中，曼菲德和席德一心想护送婴儿返回亲人身边，而迭哥则试图将他们带入自己族类设下的埋伏圈。

简介：认一认高音狗和小伙伴们一起来到博物馆，参观有趣的恐龙展览。下面的恐龙，你认识哪些？

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简介：AbstractThe obstetric issues and management styles in China are different from that in Western countries. Chinese medical education, residency training, obstetric care structure, and management of common obstetric complications are briefly reviewed and compared to the United States. Maternal-fetal medicine (MFM) is rapidly developing in China, but the development of MFM may not follow the same trajectory as in the West. Understanding the difference between China and the West may facilitate communication and foster mutual development.

简介：信息产业时代的到来，中国载人飞船的成功发射，数码风暴的“狂风巨浪”，都为我们生活的祥和空间平添一份精彩！

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简介：Theseyearshavewitnessedtherapidgrowingofinternet,andwearesteppingintoanewage-InternetAge.Buttheprivacyonhumanrightsthatfollowedhasbecomethehotissue.Thisessaytriestoexposetheprivacyfocusingonthehumanrightsundertheinternetage.Itilluminatestherightofprivacyininternetagethroughtheoriginofprivacy.Bythecomparisonoftraditionalunderstandingofprivacyandexpeditionofprivacyunderinternetage,theessayconcludesthattherightofprivacywillbetransmittedbyinternetandwillinfluencethedevelopmentofinternetaswell.

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简介：Whatstartedinabluemood，maturedtoablandbeige，butisgraduallygrowingmorered-facedwithtime?Answer．theuniverse．

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简介：ＡｇｅＳｔｒｕｃｔｕｒｅａｎｄＤｅｐｅｎｄｅｎｃｙＲａｔｉｏＣｈｉｎａ’ｓｐｏｐｕｌａｔｉｏｎｈａｓｅｘｐｅｒｉｅｎｃｅｄａｐｒｏｃｅｓｆｒｏｍａｈｉｇｈｂｉｒｔｈｒａｔｅａｎｄｈｉｇｈｍｏｒｔａｌｉｔｙｒａｔｅｔｏａｌｏｗｂｉｒｔｈｒａｔｅａｎｄｌ...