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Centre for Policy on Ageing | |
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| The timing of change: patterns in transitions in functional status among elderly persons | | Author(s) | Roger T Anderson, Margaret K James, Michael E Miller |
| Journal title | The Journals of Gerontology Series B: Psychological sciences and social sciences, vol 53B, no 1, January 1998 |
| Pages | pp S17-S27 |
| Keywords | Mobility ; Self care capacity ; Health [elderly] ; Death ; Longitudinal surveys ; United States of America. |
| Annotation | In this study, data from the Longitudinal Study on Aging, United States (US) were analysed to describe the heterogeneity of functional status transitions over 2 years (single state model) and to explore whether changes in status in the previous two to four year period enhance the prediction of a subsequent transition (two-state model). Multivariate logistic regression with a robust estimate of variance was used to analyse a 7-category nominal response of: functional status (4 levels), institutionalisation, death, and missing. Weighted percentages for functional status transitions and stability (unchanged status) showed that unchanged or improved functioning were at least as common as death or worsened functional status. Initial disability level, morbidities, and self-rated health were the strongest predictors of disability status after 2 years. The two-state model revealed that a previous transition (positive or negative) increases the risk for a subsequent transition, independent of initial disability level. The predictive and explanatory quality of the two-state model is substantially improved over single-state models, particularly from its ability to identify subgroups of individuals with marked functional status instability. |
| Accession Number | CPA-980310409 A |
| Classmark | C4: CA: CC: CW: 3J: 7T |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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