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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Schröder, Helmut | - |
dc.contributor.author | Subirana, Isaac | - |
dc.contributor.author | Wärnberg, Julia | - |
dc.contributor.author | Medrano, María | - |
dc.contributor.author | González Gross, Marcela | - |
dc.contributor.author | Gusi, Narcis | - |
dc.contributor.author | Aznar, Susana | - |
dc.contributor.author | Alcaraz, Pedro E. | - |
dc.contributor.author | González Valeiro, Miguel A. | - |
dc.contributor.author | Serra-Majem, Lluis | - |
dc.contributor.author | Terrados, Nicolás | - |
dc.contributor.author | Tur, Josep A. | - |
dc.contributor.author | Segú, Marta | - |
dc.contributor.author | Homs, Clara | - |
dc.contributor.author | Alvarez-Garcia, Alicia | - |
dc.contributor.author | Benavente Marín, Juan C. | - |
dc.contributor.author | Barón López, F. Javier | - |
dc.contributor.author | Labayen, Idoia | - |
dc.contributor.author | Zapico, Augusto G. | - |
dc.contributor.author | Sánchez Gómez, Jesús | - |
dc.contributor.author | Jiménez Zazo, Fabio | - |
dc.contributor.author | Marín Cascales, Elena | - |
dc.contributor.author | Sevilla Sanchez, Marta | - |
dc.contributor.author | Herrera Ramos, Estefanía | - |
dc.contributor.author | Pulgar, Susana | - |
dc.contributor.author | Bibiloni, María del Mar | - |
dc.contributor.author | Sistac Sorigué, Clara | - |
dc.contributor.author | Gómez, Santiago F. | - |
dc.contributor.other | Universitat Oberta de Catalunya (UOC) | - |
dc.date.accessioned | 2022-01-05T16:03:48Z | - |
dc.date.available | 2022-01-05T16:03:48Z | - |
dc.date.issued | 2021-07-17 | - |
dc.identifier.citation | Schröder, H., Subirana, I., Wärnberg, J. et al. Validity, reliability, and calibration of the physical activity unit 7 item screener (PAU-7S) at population scale. Int J Behav Nutr Phys Act 18, 98 (2021). https://doi.org/10.1186/s12966-021-01169-w | - |
dc.identifier.issn | 1479-5868MIAR | - |
dc.identifier.uri | http://hdl.handle.net/10609/137087 | - |
dc.description.abstract | Background: Validation of self-reported tools, such as physical activity (PA) questionnaires, is crucial. The aim of this study was to determine test-retest reliability, internal consistency, and the concurrent, construct, and predictive validity of the short semi-quantitative Physical Activity Unit 7 item Screener (PAU-7S), using accelerometry as the reference measurement. The effect of linear calibration on PAU-7S validity was tested. Methods: A randomized sample of 321 healthy children aged 8-16 years (149 boys, 172 girls) from the nationwide representative PASOS study completed the PAU-7S before and after wearing an accelerometer for at least 7 consecutive days. Weight, height, and waist circumference were measured. Cronbach alpha was calculated for internal consistency. Test-retest reliability was determined by intra-class correlation (ICC). Concurrent validity was assessed by ICC and Spearman correlation coefficient between moderate to vigorous PA (MVPA) derived by the PAU-7S and by accelerometer. Concordance between both methods was analyzed by absolute agreement, weighted kappa, and Bland-Altman statistics. Multiple linear regression models were fitted for construct validity and predictive validity was determined by leave-one-out cross-validation. Results: The PAU-7S overestimated MVPA by 18%, compared to accelerometers (106.5 ± 77.0 vs 95.2 ± 33.2 min/day, respectively). A Cronbach alpha of 0.76 showed an acceptable internal consistency of the PAU-7S. Test-retest reliability was good (ICC 0.71 p < 0.001). Spearman correlation and ICC coefficients of MVPA derived by the PAU-7S and accelerometers increased from 0.31 to 0.62 and 0.20 to 0.62, respectively, after calibration of the PAU-7S. Between-methods concordance improved from a weighted kappa of 0.24 to 0.50 after calibration. A slight reduction in ICC, from 0.62 to 0.60, yielded good predictive validity. Multiple linear regression models showed an inverse association of MVPA with standardized body mass index (B - 0.162; p < 0.077) and waist to height ratio (B - 0.010; p < 0.014). All validity dimensions were somewhat stronger in boys compared to girls. Conclusion: The PAU-7S shows a good test-retest reliability and acceptable internal consistency. All dimensions of validity increased from poor/fair to moderate/good after calibration. The PAU-7S is a valid instrument for measuring MVPA in children and adolescents. | en |
dc.language.iso | eng | - |
dc.publisher | The International Journal of Behavioral Nutrition and Physical Activity | - |
dc.relation.ispartofseries | 18;1 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | - |
dc.subject | children and adolescents | en |
dc.subject | self-reported physical activity | en |
dc.subject | short PAQ | en |
dc.subject | validation | en |
dc.subject | accelerometry | en |
dc.title | Validity, reliability, and calibration of the physical activity unit 7 item screener (PAU-7S) at population scale | - |
dc.type | info:eu-repo/semantics/article | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.doi | https://doi.org/10.1186/s12966-021-01169-w | - |
dc.gir.id | AR/0000009113 | - |
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