Pérez Claudio E
Health Statistics Division, Statistics Canada, Ottawa, Ontario, K1A 0T6.
Health Rep. 2003;14 Suppl:17-28.
This article examines factors associated with children aged 4 to 11 becoming and remaining active, and how this differed according to their weight.
The data are from the National Longitudinal Survey of Children and Youth: cycle 1 (1994/95) for the cross-sectional analysis, and cycles 1, 2 and 3 (1994/95 to 1998/99) for the longitudinal analysis.
Estimates of physical activity levels in 1994/95 among acceptable-weight and overweight/obese children are presented by age, sex and selected activities (TV viewing, playing computer/video games, and hours of physical education at school). Logistic regression models were constructed for children who were inactive in 1994/95, focusing on the selected activities as predictors of adopting and maintaining an active lifestyle.
Factors associated with children adopting and maintaining an active lifestyle differed, depending on their weight. For overweight/obese children, but not for acceptable-weight children, a relatively high number of physical education hours was predictive of becoming physically active, while frequent TV viewing lowered the odds.
本文探讨了与4至11岁儿童开始并保持活跃状态相关的因素，以及这些因素如何因体重不同而有所差异。
数据来自全国儿童和青少年纵向调查：用于横断面分析的第1轮（1994/95年）数据，以及用于纵向分析的第1轮、第2轮和第3轮（1994/95年至1998/99年）数据。
按年龄、性别和选定活动（看电视、玩电脑/电子游戏以及学校体育课课时）列出了1994/95年体重正常和超重/肥胖儿童的身体活动水平估计值。针对1994/95年不活跃的儿童构建了逻辑回归模型，重点关注选定活动作为采用和保持积极生活方式的预测因素。
与儿童采用和保持积极生活方式相关的因素因体重而异。对于超重/肥胖儿童而言，而非体重正常的儿童，相对较多的体育课课时可预测其身体变得活跃，而频繁看电视则降低了这种可能性。
