Centre for Children's Health Research, Institute of Health and Biomedical Innovation, School of Exercise and Nutrition Sciences, Queensland University of Technology, Level 6, 62 Graham St, South Brisbane, QLD, 4101, Australia.
Federal University of Pernambuco, Recife, PE, Brazil.
Int J Behav Nutr Phys Act. 2019 Mar 12;16(1):27. doi: 10.1186/s12966-019-0788-3.
Little is known about the influence of parental attributes and parental screen time behaviours on pre-schooler's screen time and weight status in low-to-middle income countries. The purpose of this study was to examine the relationships between parental screen time, parental self-efficacy to limit screen time, child screen time and child BMI in preschool-aged children in Brazil.
Three hundred eighteen parent-child dyads from Caruaru, Brazil completed a survey measuring sociodemographic data, weekday and weekend screen time, and parental self-efficacy for limiting screen time. Height and weight were measured and used to derive BMI and BMI percentile. Observed variable path analysis was used to evaluate the relationships between the parental and child variables.
Analyses were conducted for screen time on weekdays and weekend days. Parental screen time was positively associated with child screen time, either directly (weekdays = β = 0.27, p < 0.001, weekends = β = 0.24, p < 0.001) or indirectly through reduced self-efficacy to limit child screen time (weekdays = β = - 0.15, p = 0.004, weekends = β = - 0.16, p = 0.004). After controlling for household income, parental occupation, and parental BMI, greater child screen time on weekends, not weekdays, was associated with higher child BMI percentile (β = 0.15, p = 0.006).
Parental screen time and self-efficacy to limit screen time are important influences on child screen time and weight status in pre-schoolers from Brazil. Reducing parental screen time and increasing parental confidence to limit screen time may be effective strategy to prevent overweight in Brazilian pre-schoolers.
在中低收入国家，人们对父母特征和父母屏幕时间行为对学龄前儿童屏幕时间和体重状况的影响知之甚少。本研究的目的是检验巴西学龄前儿童中父母屏幕时间、限制孩子屏幕时间的自我效能感、儿童屏幕时间与儿童 BMI 之间的关系。
318 对来自巴西卡鲁阿鲁的父母-儿童对完成了一项调查，该调查测量了社会人口统计学数据、工作日和周末的屏幕时间以及父母限制孩子屏幕时间的自我效能感。测量了身高和体重，并用于得出 BMI 和 BMI 百分位。采用观察变量路径分析评估父母和儿童变量之间的关系。
对工作日和周末的屏幕时间进行了分析。父母的屏幕时间与孩子的屏幕时间呈正相关，直接相关（工作日 = β = 0.27，p < 0.001，周末 = β = 0.24，p < 0.001）或通过降低限制孩子屏幕时间的自我效能间接相关（工作日 = β = - 0.15，p = 0.004，周末 = β = - 0.16，p = 0.004）。在控制家庭收入、父母职业和父母 BMI 后，周末而不是工作日的儿童屏幕时间较大与儿童 BMI 百分位较高相关（β = 0.15，p = 0.006）。
父母的屏幕时间和限制孩子屏幕时间的自我效能感是巴西学龄前儿童屏幕时间和体重状况的重要影响因素。减少父母的屏幕时间和提高父母限制孩子屏幕时间的信心可能是预防巴西学龄前儿童超重的有效策略。
