A 5-year longitudinal analysis of modifiable predictors for outdoor play and screen-time of 2- to 5-year-olds

Huilan Xu, Li Ming Wen, Louise L. Hardy, Chris Rissel

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Abstract

Background: Early childhood is a critical time for establishing physical activity and sedentary behaviours. Identifying modifiable predictors of physical activity and sedentary behaviours in the early life stages can inform the development of early intervention programs. The aim of this study was to identify modifiable predictors of outdoor play (a proxy of physical activity) and screen-time in 2- to 5-year-olds. Methods: A longitudinal data analysis was conducted using 5-year follow-up data from the Healthy Beginnings Trial undertaken in Sydney, Australia from 2007 to 2013. A total of 667 pregnant women were recruited for the study. Information on mothers' demographics, physical activity, screen-time, knowledge of child development, and awareness of childhood obesity during pregnancy (at baseline); children's tummy time (a colloquial term describing the time when a baby is placed on his or her stomach while awake and supervised) at 6 months old and screen-time at 1 year old was collected via interviews with participating mothers as potential modifiable predictors. Main outcomes were children's outdoor playtime and screen-time at ages 2, 3.5, and 5 years. Mixed linear and logistic regression models were built to determine these modifiable predictors. Results: Mothers' screen-time during pregnancy (β = 2.1, 95 % CI 0.17-4.12; P = 0.030) and children's daily screen-time at age 1 year (β = 15.2, 95 % CI 7.28-23.11; P < 0.0001) predicted children's daily screen-time across ages 2 to 5 years after controlling for confounding factors. Practising tummy time daily (β = 13.4, 95 % CI 1.26-25.52; P = 0.030), mother's physical activity level (β = 3.9, 95 % CI 0.46-7.28; P = 0.026), and having been informed about playing with child at baseline (β = 11.6, 95 % CI 1.56-21.54; P = 0.023) predicted children's outdoor playtime across ages 2 to 5 years. Conclusions: Mothers played an important role in their children's outdoor play and screen-time in the first years of live. Children's early exposure to screen devices could be associated with their later screen-time. Early interventions to improve young children's physical activity and sedentary behaviour should focus on improving pregnant women's physical activity, awareness of playing with their child, reducing their own screen-time as well as practicing daily tummy time for infants after giving birth. Trial registration: The Healthy Beginnings Trial is registered with the Australian Clinical Trial Registry (ACTRNO12607000168459). Registered 13 March 2007. Prospectively registered.

Original languageEnglish
Article number96
Number of pages9
JournalInternational Journal of Behavioral Nutrition and Physical Activity
Volume13
Issue number1
DOIs
Publication statusPublished - 26 Aug 2016
Externally publishedYes

Bibliographical note

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Keywords

  • Outdoor play
  • Physical activity
  • Predictor
  • Screen-time

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