[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100371184":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":29,"centralContacts":34,"locations":39,"responsibleParty":56,"collaborators":59,"id":68,"slug":69,"hasResults":70,"nctId":71,"briefTitle":72,"officialTitle":73,"acronym":10,"eligibilityCriteria":74,"healthyVolunteers":70,"sex":75,"minAge":76,"maxAge":77,"enrollmentInfo":78,"targetDuration":10,"studyType":81,"phases":10,"briefSummary":82,"conditions":83,"keywords":86,"overallStatus":42,"whyStopped":10,"lastUpdateSubmitDate":91,"lastUpdatePostDateStruct":92,"startDateStruct":95,"completionDateStruct":97,"leadSponsor":99,"locationsCount":100},{"fullName":5,"class":6},"Shanghai Jiao Tong University School of Medicine","OTHER",[8,15],{"label":9,"type":10,"description":11,"interventionNames":12},"Overweight and obesity group",null,"1. Children with BMI cutoff points greater than 25.0 or 30.0 at 18 years old were defined overweight or obesity according to age- and sex-specific cutoff points standard proposed by International Obesity Task Force (IOTF) for 2- to 18-year-old children.\n2. Willingness to comply with study requirements",[13,14],"Device: Anthropometric measuring","Other: Growth environment evaluation",{"label":16,"type":10,"description":17,"interventionNames":18},"Non-overweight group","1. Children with BMI smaller than 25.0 at 18 years old were defined non-overweight according to age- and sex-specific cutoff points standard proposed by International Obesity Task Force (IOTF) for 2- to 18-year-old children.\n2. Willingness to comply with study requirements",[13,14],[20,25],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":10},"DEVICE","Anthropometric measuring","To divide participants into overweight and obesity and non-overweight group according to their weight status, height (H), weight (W) and waist circumference (WC) will be measured with a uniform tool, which has been calibrated. When measuring the height, the subjects are required to take off their shoes and stand in an upright position. To measuring weight, the subjects are required to wear close-fitting clothes and bare feet. Subjects are required to take the standing position to measure waist circumference horizontally at the mid-point of line between the lower margin of the ribs and the upper margin of the ilium. All those data will be kept one decimal place. Anthropometric measuring will be taken at baseline and follow-up periods.",[16,9],{"type":6,"name":26,"description":27,"armGroupLabels":28,"otherNames":10},"Growth environment evaluation","The information of children' growth environment, including family environment, physical activities, dietary and sleep habits, will be collected by parent-report questionnaire at baseline and follow-up periods.",[16,9],[30],{"name":31,"affiliation":32,"role":33},"Shijian Liu, Ph.D","Shanghai Children's Medical Center","PRINCIPAL_INVESTIGATOR",[35],{"name":31,"role":36,"phone":37,"phoneExt":10,"email":38},"CONTACT","21-38625637","liushijian@scmc.com.cn",[40],{"facility":41,"status":42,"city":43,"state":44,"zip":45,"country":46,"countryCode":47,"cosmosGeoPoint":48,"geoPoint":53,"contacts":54},"Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine","RECRUITING","Shanghai","Shanghai Municipality","200127","China","CN",{"type":49,"coordinates":50},"Point",[51,52],121.45806,31.22222,{"lat":52,"lon":51},[55],{"name":31,"role":36,"phone":37,"phoneExt":10,"email":38},{"type":33,"investigatorFullName":57,"investigatorTitle":58,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Sijia Gu","staff of Research Department",[60,61,63,66],{"name":32,"class":6},{"name":62,"class":6},"BoAi Hospital of Zhongshan",{"name":64,"class":65},"QuFu People's Hospital","INDIV",{"name":67,"class":6},"Inner Mongolia People's Hospital","100371184","overweight-and-obesity-and-puberty-development-cohort-study-100371184",false,"NCT04113070","Overweight and Obesity and Puberty Development Cohort Study","The Effect of Childhood Overweight and Obesity and Genetic Factors on Puberty Development: a Prospective Cohort Study","Inclusion Criteria:\n\n* Children over 6 years old from grade 1, 2 and 3 in selected primary schools in Zhongshan, Qufu and Huhhot since 2019\n\nExclusion Criteria:\n\n* Children with overweight or obesity had a history of hormone drug treatment last for 6 months","ALL","6 Years","12 Years",{"count":79,"type":80},14100,"ESTIMATED","OBSERVATIONAL","Precocious puberty and childhood overweight and obesity are important public health problems that both had adverse effects, which including psychological symptom in childhood, short final height or reproductive dysfunction in adulthood, on children's physical and psychological development.The prevalence of precocious puberty and childhood overweight and obesity are both high, and a growing body of epidemiological studies suggested that there was a close relationship of childhood overweight and obesity with puberty development, especially in girls. However, the underlying mechanism between them is unclear. Existing evidence shows that the occurrence of precocious puberty and overweight and obesity are the result of interaction of multiple factors, which consists growth environment and genetics, and many previous studies provided that more overlapping genes existed between obesity and precocious puberty patients, suggesting that common genes may result in these diseases. Therefore, based on a case control study, which will investigate the associations between obesity pleiotropic genes and early puberty, the researchers will collect information related to obesity, growth environment factors and risk genes in this study to evaluate the relationships of these related factors and precocious puberty, and to further explore whether there exists biological interaction effects of these risk factors on sexual precocity. This project has been approved by the Ethics Committee of Shanghai Children's Medical Center.",[84,85],"Precocious Puberty","Overweight and Obesity",[87,88,89,90],"Child health care","Weight status","Environment","puberty","2020-02-03",{"date":93,"type":94},"2020-02-05","ACTUAL",{"date":96,"type":94},"2019-10-11",{"date":98,"type":80},"2026-12-30",{"name":5,"class":6},1]