关键词: 焦虑, 抑郁, 睡眠障碍, 问卷调查, 手机依赖, 大学生

Abstract: Background　With the development of communication technology，mobile phone has become an essential and important carry-on article for college students.Mobile phone can make people more closely connect with each other.However，the development of the internet and various functions of mobile phone may lead to mobile phone dependency in some mobile phone users，especially in college freshmen，a group facing new life，and some of them having no pressures of entering graduate school.Objective　To investigate the association of mobile phone dependency with sleep quality，anxiety and depression in medical college freshmen.Methods　In June 2017，we conducted a survey in a cluster sample of 1 050 freshmen majoring in clinical medicine，stomatology or traditional Chinese medicine of Zhaoqing Medical College.Sociodemographic questionnaire developed by our research group，Chinese version of Mobile Phone Involvement Questionnaire （MPIQ），Pittsburgh Sleep Quality Index（PSQI），Self-rating Anxiety Scale（SAS），and Beck Depression Inventory（BDI）were used in the survey to assess the sociodemographic characteristics，mobile phone dependency，sleep quality，anxiety and depression，respectively.Multiple linear regression was used to examine the associations of mobile phone dependency with sociodemographic factors，sleep quality，anxiety and depression.Results　Altogether，944 of the students responded to the survey，obtaining a response rate of 89.90%.MPIQ score changed significantly according to sex，interest in learning，learning pressure，SAS score and BDI score（P<0.05）．Both interest in learning（r=-0.217），and learning pressure（r=-0.229）were negatively correlated with the MPIQ score（P<0.05）．But SAS score（r=0.114），BDI score（r=0.380）and neck circumference（r=0.110）were all positively correlated with the MPIQ score（P<0.05）．Multiple linear regression analysis showed that sex 〔β=2.713，95%CI（1.394，4.032）〕，interest in learning〔β=-3.040，95%CI（-4.353，-1.728）〕，learning pressure〔β=-3.108，95%CI（-4.374，-1.842）〕，SAS score〔β=2.492，95%CI（0.524，4.459）〕，and BDI score 〔β=1.517，95%CI（1.029，2.005）〕were independent influencing factors for MPIQ score（P<0.05）．Conclusion　Female is associated with higher possibility of having mobile phone dependency.So mobile phone dependency in this group should be paid more attention.Moreover，mobile phone dependency can cause anxiety and depression in medical college freshmen，which should to be highly concerned by families and schools.

Key words: Anxiety, Depression, Sleep disorders, Questionnaires, Mobile phone dependence, College students