Objective To investigate the electronic screen exposure of preschool children in Longhua District of Shenzhen, and to analyze the influencing factors. Methods A total of 25 266 children in kindergarten in Longhua District of Shenzhen were selected as study subjects. A self-designed questionnaire (completed by their guardians) was used to investigate the use of electronic products in the families of preschoolers in April 2019. Results A total of 23 407 valid questionnaires were collected in this survey, of which 12 593 (53.80%) were boys and 10 814 (46.20%) were girls; and 17 188(73.43%) children were 5 years old. Among the surveyed children, the rate of excessive exposure to electronic screens (＞1h/d) was 37.72%, and 6.40% of preschool children used electronic products for more than 2 hours per day. There were statistically significant differences between the excessive exposure group and the non-excessive exposure group in gender, household registration, parents' educational level, average monthly household income,whether exclusive electronic products,whether restriction of children's use of electronic products, whether living with elders, only children or not, and the type of main caregiver (P<0.05).Multivariate binary Logistic regression analysis showed that girls,mothers with college education or above,not living with elders,primary caregivers being parents or nannies/others,and no exclusive electronic products were protective factors for children's excessive exposure to electronic products(P<0.05).Non-household resident population,not-only child,and non-restriction of children's use of electronic products were risk factors for children's excessive exposure to electronic products(P<0.05). Conclusions The excessive use of electronic products in preschoolers is a common phenomenon in Longhua district, Shenzhen. Therefore, it is necessary to strengthen the intervention on the use time of electronic products in preschoolers, and pay more attention to the influence of family environmental factors.
Key words
preschoolers /
electronic products /
screen exposure /
screen time
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