raw data.xls

To obtain a representative sample of college students in Jiangsu province, this cross-sectional survey adopted multi-stage cluster sampling method, and four universities located in four cities in Jiangsu province are purposefully selected. Each selected university was stratified by specialties (literature and history, science and engineering, medicine, and other specialties), and one class within the specialty was subsequently sampled as a unit, proportional to the number of students in different grades (from freshman to senior) in the whole sample. Each student was invited to complete a series of questionnaires that measures parent-child attachment, school bonding, and social adaptation status. 1,440 students were invited to participate in the study, and a total of 1,320 agreed to participate, representing a response rate of 91.7%. The studies involving human participants were reviewed and approved by Ethics Committee of Kangda College of Nanjing Medical University. The patients/participants all provided their written informed consent to participate in this study.