Journal article

Development and testing of a past year measure of sedentary behavior: the SIT-Q

Brigid M Lynch, Christine M Friedenreich, Farah Khandwala, Andrew Liu, Joshua Nicholas, Ilona Csizmadi

BMC PUBLIC HEALTH | BMC | Published : 2014


BACKGROUND: Most sedentary behavior measures focus on occupational or leisure-time sitting. Our aim was to develop a comprehensive measure of adult sedentary behavior and establish its measurement properties. METHOD: The SIT-Q was developed through expert review (n = 7), cognitive interviewing (n = 11) and pilot testing (n = 34). A convenience sample of 82 adults from Calgary, Alberta, Canada, participated in the measurement property study. Test-retest reliability was assessed by intraclass correlation coefficients (ICCs) comparing two administrations of the SIT-Q conducted one month apart. Convergent validity was established using Spearman's rho, by comparing the SIT-Q estimates of sedentar..

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Awarded by Canadian Institutes of Health Research

Awarded by Alberta Cancer Foundation

Awarded by National Health and Medical Research Council

Funding Acknowledgements

The authors thank Ruth Ullman (Alberta Health Services) for conducting the cognitive interviews; Wendy Brown and Genevieve Healy (The University of Queensland, Australia), Neville Owen and David Dunstan (Baker IDI Heart and Diabetes Institute, Australia), Charles Matthews (National Cancer Institute, USA), Jo Salmon (Deakin University, Australia), and Katrien Wijndaele (Medical Research Council Epidemiology Unit, UK) for their participation in the expert review component of this study. This study was funded by the Canadian Institutes of Health Research Grant # MOP-86632 (Ilona Csizmadi, Principal Investigator) and the Alberta Cancer Foundation # 24265 (Ilona Csizmadi, Principal Investigator). Brigid M. Lynch was supported by a Research Fellowship from Alberta Innovates - Health Solutions, an Early Career Fellowship from the National Health and Medical Research Council # 586727 and the Victorian Government's Operational Infrastructure Support Program. Christine M. Friedenreich is funded by an Alberta Innovates-Health Solutions Health Senior Scholar Award, and is the Alberta Cancer Foundation Weekend to End Women's Cancers Breast Cancer Chair.