Additional file 1: of Development of a measurement approach to assess time children participate in organized sport, active travel, outdoor active play, and curriculum-based physical activity

SAS syntax for deriving estimates of time that children spend in different types of physical activity. (PDF 174 kb

Comparison between the Centers for Disease Control and Prevention (CDC) and International Obesity Task Force (IOTF) body mass index classification systems for overweight and obesity in youth

<p><b>Copyright information:</b></p><p>Taken from "Vascular Risks and Management of Obesity in Children and Adolescents"</p><p></p><p>Vascular Health and Risk Management 2006;2(2):171-187.</p><p>Published online Jan 2006</p><p>PMCID:PMC1994001.</p><p>© 2006 Dove Medical Press Limited. All rights reserved</p

Description of key variables by level of physical activity (n = 23,124).

<p>Note: N values presented were weighted as per the HBSC protocol. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089509#pone.0089509-Freeman1" target="_blank">[32]</a> The Rao-Scott chi square test controls for the clustering effect of school. The “other” ethnic group includes youth who identified with more than one of the six identified ethnic groups.</p

Nominal regression modeling of determinants of moderate-to-vigorous physical activity.

<p>Note: The reference group in both models was “0–3 days/week.” Both models (unadjusted and adjusted) control for clustering at the school level. The adjusted models control at the individual level for age, gender and perceived family wealth. At the area level the models control for median neighbourhood income, percentage of immigrants in the community and Statistics Canada Population Centre category.</p

Flow chart of inclusion information for participants.

<p>Flow chart of inclusion information for participants.</p

Descriptive Characteristics of Participants.

<p>Descriptive Characteristics of Participants.</p

Investigations of interactions between ethnicity and time since immigration.

<p>Note: N values presented were weighted as per the HBSC protocol. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089509#pone.0089509-Freeman1" target="_blank">[32]</a> The Rao-Scott chi square test controls for the clustering effect of school.</p

Organized Sport Participation by Family Structure.

<p>Organized Sport Participation by Family Structure.</p

Study flow diagram of exclusion criteria used to eliminate observations from the original HBSC sample.

<p>Study flow diagram of exclusion criteria used to eliminate observations from the original HBSC sample.</p

The direct effect and indirect effect of family structure on organized sport participation, considering family affluence as a mediator.

<p>The direct effect and indirect effect of family structure on organized sport participation, considering family affluence as a mediator.</p