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Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3.
- Source :
- International Journal of Behavioral Nutrition & Physical Activity; 12/4/2015, Vol. 12, p1-9, 9p, 2 Charts, 1 Graph
- Publication Year :
- 2015
-
Abstract
- Background: Sitting time questionnaires have largely been validated in small convenience samples. The validity of this multi-context sitting questionnaire against an accurate measure of sitting time is reported in a large demographically diverse sample allowing assessment of validity in varied demographic subgroups. Methods: A subgroup of participants of the third wave of the Australian Diabetes, Obesity, and Lifestyle (AusDiab3) study wore activPAL3™ monitors (7 days, 24 hours/day protocol) and reported their sitting time for work, travel, television viewing, leisure computer use and "other" purposes, on weekdays and weekend days (n = 700, age 36-89 years, 45 % men). Correlations (Pearson's r; Spearman's p) of the self-report measures (the composite total, contextual measures and items) with monitor-assessed sitting time were assessed in the whole sample and separately in socio-demographic subgroups. Agreement was assessed using Bland-Altman plots. Results: The composite total had a correlation with monitor-assessed sitting time of r = 0.46 (95 % confidence interval [CI]: 0.40, 0.52); this correlation did not vary significantly between demographic subgroups (all >0.4). The contextual measure most strongly correlated with monitor-assessed sitting time was work (p = 0.25, 95 % CI: 0.17, 0.31), followed by television viewing (p = 0.16, 95 % CI: 0.09, 0.24). Agreement of the composite total with monitored sitting time was poor, with a positive bias (B = 0.53, SE 0.04, p < 0.001) and wide limits of agreement (±4.32 h). Conclusions: This multi-context questionnaire provides a total sitting time measure that ranks participants well for the purposes of assessing health associations but has limited accuracy relative to activPAL-assessed sitting time. Findings did not differ in demographic subgroups. [ABSTRACT FROM AUTHOR]
- Subjects :
- COMPUTERS
CONFIDENCE intervals
STATISTICAL correlation
DEMOGRAPHY
RESEARCH methodology
PROBABILITY theory
QUESTIONNAIRES
RESEARCH funding
SELF-evaluation
SITTING position
STATISTICAL hypothesis testing
STATISTICS
TELEVISION
TIME
TRANSPORTATION
WORK
DATA analysis
SOCIOECONOMIC factors
BODY mass index
ACCELEROMETRY
RESEARCH methodology evaluation
SEDENTARY lifestyles
DATA analysis software
DIARY (Literary form)
DESCRIPTIVE statistics
Subjects
Details
- Language :
- English
- ISSN :
- 14795868
- Volume :
- 12
- Database :
- Complementary Index
- Journal :
- International Journal of Behavioral Nutrition & Physical Activity
- Publication Type :
- Academic Journal
- Accession number :
- 111436985
- Full Text :
- https://doi.org/10.1186/s12966-015-0309-y