中小学生近视相关健康信念与屏幕时间的相关性

目的 了解上海市静安区中小学生近视相关健康信念因素及其与屏幕时间的相关性,为减少屏幕时间和预防近视提供健康宣教相关政策建议.方法 采用整群抽样的方法选取上海市静安区内1所小学与1所初中的一至八年级1 585名学生进行问卷调查,分析近视相关健康信念因素持有情况、屏幕时间情况及两者的相关性.结果 18.8％～44.4％的学...

Myopia-related health belief and screen time of primary and secondary school students

  Objective  To understand the correlation between myopia related health belief and screen time of primary and secondary school students in Jing'an District of Shanghai, and to provide suggestions for reducing screen time and preventing myopia.  Methods  Using the method of cluster sampling, 1 585 students from grade one to grade eight of a primary school and a junior high school in Jing'an District were selected for a questionnaire survey regarding myopia related health belief, screen time and the correlation between them.  Results  About 18.8%-44.4% of the students perceived themselves as myopia susceptible, which increased with grade (χ2=33.25, P < 0.01), 51.5%-78.0% of the students were aware of the adverse health impart of myopia, 39.3%-55.6% of the students were aware of unhealthy behaviors associated with myopia and 48.7%-77.5% of the students. More than 47.6% of the students' daily screen time was more than 2 h/day, and daily screen time increased with grade (χ2=12.18, P < 0.01). Perceived susceptibility for myopia, awareness on adverse health impact of myopia and unhealthy behaviors associated with myopia, as well as self-efficacy associated with myopia prevention were associated with screen time of students.  Conclusion  The primary and middle school students in Jing'an District show low lever of knowledge on myopia susceptibility and threat, but higher lever of knowledge on myopia severity and self-efficacy of preventing myopia. nearly half of the students use electronic screens too long or too close to their eyes. Awareness on myopia susceptibility, myopia-related behaviors and health impacts of myopia and self-efficacy, combined with screen time reduction might help myopia prevention.