U.S. Children Meeting Physical Activity, Screen Time, and Sleep Guidelines

Area of Science:

• Pediatric Public Health
• Childhood Behavioral Science

Background:

• Physical inactivity, excessive screen time, and insufficient sleep are critical public health concerns for children.
• Understanding national prevalence of adherence to guidelines for these behaviors is vital for effective intervention strategies.

Purpose of the Study:

• To determine the national prevalence of U.S. children meeting physical activity, screen time, and sleep guidelines, individually and in combination.
• To analyze how adherence to these guidelines varies across different childhood age groups.

Main Methods:

• Utilized cross-sectional data from the 2016-2017 National Survey of Children's Health, a nationally representative sample.
• Assessed physical activity (≥60 minutes/day), recreational screen time (≤2 hours/day), and sleep duration (9-12 or 8-10 hours/day) via parental report.
• Analyzed data for children aged 6-17 years, examining adherence to combined and individual guidelines.

Main Results:

• Only 8.8% of U.S. children met all three guidelines (physical activity, screen time, sleep).
• While 86.0% met sleep guidelines, significantly fewer met physical activity (23.0%) or screen time (32.9%) guidelines.
• Prevalence of meeting each guideline and all three combined significantly decreased with increasing age (p<0.001).

Conclusions:

• A small proportion of U.S. children adhere to all recommended physical activity, screen time, and sleep guidelines.
• Public health initiatives should focus on improving physical activity and reducing screen time, particularly among adolescents.
• Age-related declines in guideline adherence underscore the need for tailored interventions throughout childhood.