Abstract Overview
Background: In 2019, World Health Organization (WHO) released the first global guidelines on physical activity, sedentary behaviour and sleep (collectively known as movement behaviours) for children under five years of age. It is important to determine the global proportion of children meeting the guidelines to inform efforts to promote healthy movement behaviours in early childhood.
Purpose: This study presents a pooled analysis on the proportion of 3- and 4-year-old children meeting WHO guidelines across the globe using a harmonised data processing protocol.
Methods: Data were sourced from 14 cross-sectional studies conducted between 2008 and 2022. Physical activity was assessed using accelerometers and processed with a harmonised approach, while sedentary behaviour (operationalised as screen time) and sleep duration were proxy-reported by parents or caregivers. The proportion of children meeting WHO guidelines was estimated at a global level and by World Bank income group and WHO region using a meta-analysis approach.
Results: Our pooled analyses involving 7,017 children (51.1% boys) from 33 countries and territories revealed that only 14.3% (95% confidence interval 9.7,20.7) met the overall WHO guidelines for physical activity, screen time and sleep duration. The lowest proportion of meeting guidelines was observed in upper-middle-income countries (11.9% [5.9,22.5]) and the Americas (7.7% [3.6,15.8]), while the highest proportion was in low- and lower-middle-income countries (16.6% [10.4,25.3]) and Africa (23.9% [11.6,43.0]).
Conclusions: Less than one in six preschool children worldwide met the WHO guidelines for physical activity, sedentary behaviour and sleep. While differences were noted among regions and income groups, the proportion meeting guidelines was low for all.
Practical implications: Understanding key factors and implementing contextually appropriate and effective programs and policies are essential to promote healthy movement behaviours in preschool age group.
Funding: No funding was received for conducting this pooled analysis.
Additional Authors