|Title||Stand and Move at Work sedentary behavior questionnaire: validity and sensitivity to change.|
|Publication Type||Journal Article|
|Year of Publication||2019|
|Authors||Toledo, MJ, Mullane, SL, Larouche, ML, Rydell, SA, Mitchell, NR, Pereira, MA, Buman, MP|
|Date Published||2019 03|
|Keywords||Accelerometry, Adult, Arizona, Exercise, Female, Humans, Male, Middle Aged, Minnesota, Reproducibility of Results, Sedentary Behavior, Self Report, Surveys and Questionnaires, Urban Population, Workplace|
PURPOSE: We evaluated the validity and sensitivity to change of a workplace questionnaire to assess sedentary behavior (SB) during and outside work.
METHODS: Participants wore an activPAL and completed an SB questionnaire at two time points (baseline and 3-month follow-up). Ecological momentary assessments were used to assess workplace location (at desk vs. away from desk). Intraclass correlation coefficients, mean difference, root of mean square error, kappa agreement, and Bland-Altman plots assessed validity. Sensitivity to change after 3 months of intervention was assessed using the standardized effect size.
RESULTS: Data from 546 participants (age = 45.1 ± 16.4 years, 24.9% males, 72.7% white) were analyzed. Intraclass correlation coefficients ranged from 0.08 to 0.23. SB was overestimated d¯(95%CI) by 47.9 (39.2, 56.6) min during work hours but underestimated for both non-work hours and nonworkdays by -38.3 (-47.4, 29.1) and -106.7 (124.0, -89.5) min, respectively. Participants slightly underestimated SB by -3.4 (-12.6, 5.7)% when at their desk but overestimated SB by 2.8 (-2.4, 8.0)% when not at their desk. The questionnaire demonstrated similar standardized effect size (>0.6) to the activPAL for sedentary and standing time.
CONCLUSIONS: Agreement between the questionnaire and activPAL was on par with other self-report measures. The questionnaire yielded valid estimates of at/away from desk SB and was sensitive to change.
|Alternate Journal||Ann Epidemiol|
|PubMed Central ID||PMC6420389|
|Grant List||R01 CA198971 / CA / NCI NIH HHS / United States|