|Trends of Age at Menarche and Association with Body Mass Index in Chinese School-Aged Girls, 1985-2010|
|Song, Yi1,2; Ma, Jun1; Wang, Hai-Jun1; Wang, Zhiqiang1,3; Hu, Peijin1; Zhang, Bing1; Agardh, Anette2|
|刊名||JOURNAL OF PEDIATRICS|
|收录类别||SCI ; SSCI|
|WOS标题词||Science & Technology|
|关键词[WOS]||NATIONALLY REPRESENTATIVE SURVEYS ; SECULAR TRENDS ; RISK-FACTORS ; AVERAGE AGE ; WOMEN ; URBANIZATION ; MENOPAUSE ; OBESITY ; APART ; BORN|
Objectives To estimate the shifts in age at menarche from 1985 to 2010, compare the differences of average age at menarche between urban and rural groups, and determine the association of menarche with body mass index (BMI).
Study design The data were obtained from 4 cross-sectional Chinese National Surveys on Students′ Constitution and Health (1985, 1995, 2005, and 2010). In this representative sample of Chinese school-aged girls, the average age at menarche was determined using probit analysis and compared between urban and rural areas. Logistic regression was used to assess the association of BMI with the likelihood of having reached menarche.
Results The age at menarche in Chinese girls dropped from 13.41 years to 12.47 years from 1985 to 2010. There was a significant difference in age at menarche between urban and rural girls over time, with urban girls having their menarche earlier than rural girls. Logistic regression showed that a higher BMI was strongly associated with an increased likelihood of having reached menarche, even after controlling for age, urban or rural residence, province, social economic status, and school.
Conclusion The analysis suggests a drop of about 4.5 months per decade in the average age at menarche over the past 25 years, and a significant inverse association between BMI and having reached menarche. Considering that both early menarche and higher BMI are significant risk factors for chronic diseases, and may act together in later years to the detriment of a woman′s health, greater attention should be paid to the health of girls with earlier menarche and higher BMI.
|项目编号||81302442 ; APP1045000|
|资助机构||National Natural Science Foundation of China ; National Health and Medical Research Council of Australia|
|作者单位||1.Peking Univ, Sch Publ Hlth, Inst Child & Adolescent Hlth, Beijing 100191, Peoples R China|
2.Lund Univ, Div Social Med & Global Hlth, Dept Clin Sci, Malmo, Sweden
3.Univ Queensland, Royal Brisbane & Womens Hosp, Sch Med, Ctr Chron Dis, Herston, Qld, Australia
|Song, Yi,Ma, Jun,Wang, Hai-Jun,et al. Trends of Age at Menarche and Association with Body Mass Index in Chinese School-Aged Girls, 1985-2010[J]. JOURNAL OF PEDIATRICS,2014,165(6):1172-+.|
|APA||Song, Yi.,Ma, Jun.,Wang, Hai-Jun.,Wang, Zhiqiang.,Hu, Peijin.,...&Agardh, Anette.(2014).Trends of Age at Menarche and Association with Body Mass Index in Chinese School-Aged Girls, 1985-2010.JOURNAL OF PEDIATRICS,165(6),1172-+.|
|MLA||Song, Yi,et al."Trends of Age at Menarche and Association with Body Mass Index in Chinese School-Aged Girls, 1985-2010".JOURNAL OF PEDIATRICS 165.6(2014):1172-+.|