关键词: 电子媒体, 习惯, 限制, 儿童, 少年

Abstract: Objective To study the status of media use of children and adolescents among health examination crowd. Methods A cluster sampling survey was carried out from October 2010 to February 2012.Data were collected through self-administered structured retrospective questionnaire from 305 pairs of families in health examination department of affiliated children's hospital of Wenzhou Medical College. Results 46.23%(141/305)children and adolescents used media excess 2 hours per day.There was no significant difference among ages in the total time of electronic media use per week(referred to as the T/w)(F=1.294,P=0.272);Parents' restrictions on media use,morning TV viewing habit,media as children's main killing time tool could affect the T/w(t=4.848,-2.814,-6.174,all P<0.01).Children whose sleep could not be affected by media use before sleep were more inclined to use media excess 14 hours per week(χ²=4.424,P=0.038). Conclusions The children and adolescents spend substantial time on media,and their habit,favorite around media had formed at least before or at 6 years old; Parents' restriction on media use can affect the time children spend before screen media;TV-viewing before sleep can affect children's sleep,but the effect does not lie in the total time of TV-viewing.

Key words: media, habit, restriction, children, adolescent