The Association between Screen Time and Weight Status in Hispanic Children

Area of Science:

• Pediatric obesity
• Public health
• Child development

Background:

• Childhood obesity affects one-third of U.S. children, disproportionately impacting Hispanic children (41%).
• Hispanic children spend more time in sedentary behaviors compared to non-Hispanic white children.
• The role of the home environment in promoting sedentary behaviors and contributing to obesity disparities among Hispanic children is not well understood.

Purpose of the Study:

• To investigate the associations between the home environment, parental rules, and screen time with body weight in Hispanic children.
• To explore how these factors contribute to obesity disparities within this demographic.

Main Methods:

• A study involving 187 middle school Hispanic children (ages 10-14) and their parents.
• Measurement of children's anthropometrics to calculate Body Mass Index (BMI) z-scores.
• Questionnaires assessed physical activity (PA), sedentary activities, home environment, and parental rules regarding screen time.

Main Results:

• Total daily television (TV) viewing time was positively associated with children's BMI z-score (P=0.02).
• Sleeping time was inversely associated with BMI z-score (P=0.02), with a significant gender interaction (P=0.02).
• Having a screen in the bedroom correlated with increased TV and total screen time, while parental limits on screen time showed an inverse association.

Conclusions:

• Screen time and sleep duration may independently contribute to higher body weight in Hispanic children, irrespective of physical activity levels.
• Sleep duration's impact on body weight differs by gender, with girls sleeping less than boys.
• Family-level interventions focusing on sleep patterns, physical activity, and reducing sedentary opportunities at home are recommended for obesity prevention.