Supplementary information files for Applying the COM-B model to understand wearable activity tracker use in children and adolescents

Supplementary files for article Applying the COM-B model to understand wearable activity tracker use in children and adolescents <br> Aim: Wearable activity trackers (wearables) are increasingly popular intervention tools for increasing child and adolescent physical activity (PA) levels. However, the large-scale habitual use of wearables in children and adolescents is unknown. This study investigated the prevalence of wearable use in children and adolescents, and what factors impact their use. <br> Subjects and methods: This study utilised a cross-sectional survey and the ‘Capability, Opportunity, Motivation and Behaviour’ (COM-B) model was applied to explore what child/adolescent and parental characteristics impact wearable use. Parents/guardians of 5- to 17-year-olds were invited to complete the survey. The survey was open internationally, and consisted of between 19 and 23 questions, depending on child/adolescent wearable use. Multinomial logistic regression analyses were conducted to explore variables impacting wearable use, in children (5 to 9 years) and adolescents (10 to 17 years). <br> Results: The survey was completed by 652 parents, representing 831 children/adolescents. Most children/adolescents had never used a wearable (n = 429; 51.6%), and 252 (30.3%) and 150 (18.1%) currently or had previously used a wearable, respectively. Child age and sex, capability, opportunity and motivation for PA were associated with wearable use, and differences were present between child (5 to 9 years) and adolescent (10 to 17 years) wearable use. <br> Conclusions: This study offers a novel contribution to the understanding of child and adolescent habitual wearable use, and what impacts wearable use in these age groups.

本数据集为《应用COM-B模型探究儿童及青少年可穿戴活动追踪器使用行为》论文的补充材料<br>研究目的：可穿戴活动追踪器（wearable activity tracker）是一类日益流行的用于提升儿童及青少年身体活动（physical activity，PA）水平的干预工具。然而目前学界对于儿童及青少年群体中该设备的大规模长期使用情况仍不明确。本研究旨在调查儿童及青少年使用可穿戴活动追踪器的流行率，并探究影响其使用行为的相关因素<br>研究对象与方法：本研究采用横断面调查设计，应用COM-B（Capability, Opportunity, Motivation and Behaviour）模型，探究儿童/青少年自身及家长的特征对其使用可穿戴活动追踪器的影响。研究邀请5至17岁儿童及青少年的家长/监护人参与问卷调研。本次调研面向全球开放，问卷题量根据儿童/青少年是否使用可穿戴活动追踪器分为19至23题不等。本研究分别针对儿童组（5至9岁）与青少年组（10至17岁）开展多项逻辑回归分析，以识别影响可穿戴活动追踪器使用行为的相关变量<br>研究结果：本次调研共回收652份家长有效问卷，覆盖831名儿童及青少年受试者。其中，绝大多数儿童及青少年从未使用过可穿戴活动追踪器（n=429，占比51.6%），252名（30.3%）目前正在使用该设备，150名（18.1%）曾有使用经历。研究发现，儿童年龄与性别、身体活动的能力、机会及动机均与可穿戴活动追踪器的使用行为存在显著关联，且儿童组与青少年组的设备使用行为存在明显差异<br>研究结论：本研究为理解儿童及青少年长期使用可穿戴活动追踪器的行为模式及其影响因素提供了全新的研究视角。