Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3
© 2015 Clark et al. 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 vali...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/45769 |
| _version_ | 1848757377182990336 |
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| author | Clark, B. Lynch, B. Winkler, E. Gardiner, P. Healy, Genevieve Dunstan, D. Owen, N. |
| author_facet | Clark, B. Lynch, B. Winkler, E. Gardiner, P. Healy, Genevieve Dunstan, D. Owen, N. |
| author_sort | Clark, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015 Clark et al. 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 ?) 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 (? = 0.25, 95 % CI: 0.17, 0.31), followed by television viewing (? = 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. |
| first_indexed | 2025-11-14T09:27:07Z |
| format | Journal Article |
| id | curtin-20.500.11937-45769 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:27:07Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-457692017-09-13T14:25:25Z Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 Clark, B. Lynch, B. Winkler, E. Gardiner, P. Healy, Genevieve Dunstan, D. Owen, N. © 2015 Clark et al. 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 ?) 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 (? = 0.25, 95 % CI: 0.17, 0.31), followed by television viewing (? = 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. 2015 Journal Article http://hdl.handle.net/20.500.11937/45769 10.1186/s12966-015-0309-y unknown |
| spellingShingle | Clark, B. Lynch, B. Winkler, E. Gardiner, P. Healy, Genevieve Dunstan, D. Owen, N. Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 |
| title | Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 |
| title_full | Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 |
| title_fullStr | Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 |
| title_full_unstemmed | Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 |
| title_short | Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3 |
| title_sort | validity of a multi-context sitting questionnaire across demographically diverse population groups: ausdiab3 |
| url | http://hdl.handle.net/20.500.11937/45769 |