Purpose: Understanding which physical activity (PA) and sedentary behavior correlates cluster in children is important, particularly in the home, where children spend significant time. Therefore, this study aimed to assess clustering of physical and social activity-related factors at home, and whether these clusters are related to home-based sitting and PA in children. A secondary aim was to explore whether the clusters were associated with child, parent, and family characteristics. Methods: Altogether, 235 children (55% girls, mean age = 10.2 [0.7] y) and their parents took part. Physical (eg, PA and electronic media equipment, house and garden size, layout) and social (eg, activity preferences, priorities, parental rules) home environmental factors were obtained via the HomeSPACE-II audit and self-report, respectively. Principal component analysis was used to identify clusters of physical and social environmental factors. Backward regression analysis and partial correlations were used to examine relationships between clusters, children’s device-measured home-based activity behaviors, and background characteristics. Results: The findings show that physical and social environment activity-related factors at home cluster. The clusters were associated with several background characteristics, with socioeconomic factors appearing to be particularly influential. The clusters were also associated with home-based activity behaviors in the hypothesized directions. Conclusion: Interventions which target clusters of social and physical factors at home, especially among low-socioeconomic status families, are warranted.

目的：了解哪些身体活动 (PA) 和久坐行为与儿童的聚集性相关很重要，尤其是在儿童花费大量时间的家中。因此，本研究旨在评估家庭中身体和社交活动相关因素的聚类，以及这些聚类是否与儿童的居家坐姿和体力活动有关。次要目的是探索集群是否与儿童、父母和家庭特征相关。方法：共有 235 名儿童（55% 为女孩，平均年龄 = 10.2 [0.7] 岁）及其父母参加。物理（例如，PA 和电子媒体设备、房屋和花园大小、布局）和社会（例如，活动偏好、优先事项、父母规则）家庭环境因素分别通过 HomeSPACE-II 审计和自我报告获得。主成分分析用于识别物理和社会环境因素的集群。后向回归分析和偏相关被用来检查聚类、儿童设备测量的家庭活动行为和背景特征之间的关系。结果：研究结果表明，与家庭集群中的物理和社会环境活动相关的因素。这些集群与几个背景特征相关，其中社会经济因素似乎特别有影响力。这些集群还与假设方向上的家庭活动行为相关联。结论：针对家庭中的社会和物理因素集群的干预措施是必要的，尤其是在社会经济地位低的家庭中。