title: The construction and prospects of the Chongqing twin children database.
abstract: Twins could play a crucial role in our understanding of genetic contributions to numerous etiologically complex disorders. In China, although adult twins are relatively rare, twins will become increasingly available due to increasing twin birth rates. Thus, child twin data will be a valuable resource to contribute to the field of child and adolescent psychopathology. The first twin database of children aged from 6 to 16 was established in Chongqing, R.P., China. In this article, we will discuss our experiences in establishing the twin database, completed in three steps--the first step being to search and identify twins, the second being to keep contact with the twins and the final being to seek cooperation with the twin families, and its future prospects. Our twin database has proven to be an efficient method for the investigation and data collection of twin children in China. The results of our present study suggest that the inclusion of twin information in the residence registration of the public security bureaus in the future may ensure a smooth run of research based on the demographic resources. We propose that school networks may be adopted as the preferred method of collection of twin records for future studies.
authors.affiliation: Department of Psychiatry, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China.
authors.forename: Yixiao
authors.initials: Y
authors.lastname: Fu
authors.forename: Peng
authors.initials: P
authors.lastname: Xie
authors.forename: Huaqing
authors.initials: H
authors.lastname: Meng
authors.forename: Qing
authors.initials: Q
authors.lastname: Qin
authors.forename: Lu
authors.initials: L
authors.lastname: Jia
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.forename: Yi
authors.initials: Y
authors.lastname: Huang
authors.forename: Xiao
authors.initials: X
authors.lastname: Hou
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Luo
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Ma
authors.forename: Wei
authors.initials: W
authors.lastname: Deng
authors.forename: Yingcheng
authors.initials: Y
authors.lastname: Wang
authors.forename: Hua
authors.initials: H
authors.lastname: Hu
authors.forename: Lian
authors.initials: L
authors.lastname: Du
authors.forename: Kun
authors.initials: K
authors.lastname: Feng
authors.forename: Haitang
authors.initials: H
authors.lastname: Qiu
authors.forename: Yun
authors.initials: Y
authors.lastname: Xiang
authors.forename: Tao
authors.initials: T
authors.lastname: Li
mesh_terms: D000293:Adolescent; D002648:Child; D002681:China; D016208:Databases, Factual; D005260:Female; D006801:Humans; D008297:Male; D014427:Twins