Validity of self-reported leisure-time sedentary behavior in adolescents

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  • Affuso, Olivia
    • Other Affiliation: Department of Epidemiology, University of Alabama at Birmingham, 1530 Third Ave, South, RPHB 220E, Birmingham, AL 35294-0022, USA
  • Stevens, June Sheppa
    • Affiliation: Gillings School of Global Public Health, Department of Nutrition
  • Catellier, Diane J.
    • Affiliation: Gillings School of Global Public Health, Department of Biostatistics
  • McMurray, Robert G.
    • Affiliation: Gillings School of Global Public Health, Department of Nutrition
  • Ward, Dianne
    • Affiliation: Gillings School of Global Public Health, Department of Nutrition
  • Lytle, Leslie
    • Other Affiliation: Division of Epidemiology and Community Health, University of Minnesota, 1300 S. Second Street, Suite 300, Minneapolis, MN 55454-1015, USA
  • Sothern, Melinda S
    • Other Affiliation: Division of Behavioral and Community Health Sciences, Louisiana State University, 1615 Poydras Street, Suite 1400, New Orleans, LA 70112-1272, USA
  • Young, Deborah R
    • Other Affiliation: Department of Epidemiology and Biostatistics, University of Maryland, 1242A School of Public Health Building, College Park, MD 20742-0001, USA
Abstract
  • Abstract Background To evaluate the concordance between leisure-time sedentary behavior in adolescents assessed by an activity-based questionnaire and accelerometry. A convenience sample of 128 girls and 73 boys, 11-15 years of age (12.6 ± 1.1 years) from six states across the United States examined as part of the feasibility studies for the Trial of Activity in Adolescent Girls (TAAG). Three days of self-reported time spent watching TV/videos, using computers, playing video/computer games, and talking on the phone was assessed using a modified version of the Self-Administered Physical Activity Checklist (SAPAC). Criterion measure of sedentary behavior was via accelerometry over three days using a cut point of < 50 counts · 30 sec-1 epoch. Comparisons between sedentary behavior by the two instruments were made. Results Adolescents generally underestimated minutes of sedentary behavior compared to accelerometry-measured minutes. The overall correlation between minutes of sedentary behavior by self-report and accelerometry was weak (Spearman r = 0.14; 95% CI 0.05, 0.23). Adjustment of sedentary minutes of behavior for total minutes assessed using either percentages or the residuals method tended to increase correlations slightly. However, regression analyses showed no significant association between self-reported sedentary behavior and minutes of sedentary behavior captured via accelerometry. Discussion These findings suggest that the modified 3-day Self-Administered Physical Activity Checklist is not a reliable method for assessing sedentary behavior. It is recommended that until validation studies for self-report instruments of sedentary behavior demonstrate validity, objective measures should be used.
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  • Article
Rights statement
  • In Copyright
Rights holder
  • Olivia Affuso et al.; licensee BioMed Central Ltd.
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Journal title
  • Journal of Negative Results in BioMedicine
Journal volume
  • 10
Journal issue
  • 1
Page start
  • 2
Language
  • English
Is the article or chapter peer-reviewed?
  • Yes
ISSN
  • 1477-5751
Bibliographic citation
  • Journal of Negative Results in BioMedicine. 2011 Feb 11;10(1):2
Publisher
  • BioMed Central Ltd
Access right
  • Open Access
Date uploaded
  • July 8, 2016

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