Distributional data analysis of accelerometer data from the NHANES database using nonparametric survey regression models
The aim of this paper is twofold. First, a new functional representation of accelerometer data of a distributional nature is introduced to build a complete individualized profile of each subject’s physical activity levels. Second, we extend two nonparametric functional regression models, kernel smoo...
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| Published in | Journal of the Royal Statistical Society Series C: Applied Statistics Vol. 72; no. 2; pp. 294 - 313 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Oxford
Oxford University Press
12.05.2023
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| Online Access | Get full text |
| ISSN | 0035-9254 1467-9876 |
| DOI | 10.1093/jrsssc/qlad007 |
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| Abstract | The aim of this paper is twofold. First, a new functional representation of accelerometer data of a distributional nature is introduced to build a complete individualized profile of each subject’s physical activity levels. Second, we extend two nonparametric functional regression models, kernel smoothing and kernel ridge regression, to handle survey data and obtain reliable conclusions about the influence of physical activity. The advantages of the proposed distributional representation are demonstrated through various analyses performed on the NHANES cohort, which possesses a complex sampling design. |
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| AbstractList | The aim of this paper is twofold. First, a new functional representation of accelerometer data of a distributional nature is introduced to build a complete individualized profile of each subject’s physical activity levels. Second, we extend two nonparametric functional regression models, kernel smoothing and kernel ridge regression, to handle survey data and obtain reliable conclusions about the influence of physical activity. The advantages of the proposed distributional representation are demonstrated through various analyses performed on the NHANES cohort, which possesses a complex sampling design. |
| Author | Petersen, Alexander Matabuena, Marcos |
| Author_xml | – sequence: 1 givenname: Marcos surname: Matabuena fullname: Matabuena, Marcos – sequence: 2 givenname: Alexander surname: Petersen fullname: Petersen, Alexander |
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| SubjectTerms | Accelerometers Data analysis Physical activity Polls & surveys Regression models Representations Sampling designs |
| Title | Distributional data analysis of accelerometer data from the NHANES database using nonparametric survey regression models |
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