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Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study

BACKGROUND: Several studies have focused on predictors of mobility limitations and disabilities. Yet little is known about the pace and patterns of mobility changes among very old people. This study examined changes in functional mobility among individuals aged 90 years and older during a 2-9-year f...

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Autores principales: Tiainen, Kristina, Raitanen, Jani, Vaara, Elina, Hervonen, Antti, Jylhä, Marja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4608212/
https://www.ncbi.nlm.nih.gov/pubmed/26472649
http://dx.doi.org/10.1186/s12877-015-0116-y
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author Tiainen, Kristina
Raitanen, Jani
Vaara, Elina
Hervonen, Antti
Jylhä, Marja
author_facet Tiainen, Kristina
Raitanen, Jani
Vaara, Elina
Hervonen, Antti
Jylhä, Marja
author_sort Tiainen, Kristina
collection PubMed
description BACKGROUND: Several studies have focused on predictors of mobility limitations and disabilities. Yet little is known about the pace and patterns of mobility changes among very old people. This study examined changes in functional mobility among individuals aged 90 years and older during a 2-9-year follow-up. In addition, we were interested in the patterns of mobility changes. METHODS: Data were collected through a mailed questionnaire in the years 2001, 2003, 2007 and 2010. The study population (n = 948) consisted of individuals from three cohorts (2001, 2003, 2007) who participated in at least two survey rounds and answered the mobility questions. The length of the follow-up varied from 2–9 years between individuals as well as according to how many times an individual took part in the survey. Multilevel ordinal logistic regression analysis was used to evaluate the effects of time, age, gender, cohort and chronic conditions on changes in mobility. RESULTS: At the baseline, “younger” old people, men and individuals in the cohorts for 2003 and 2007 had significantly better mobility compared with women, older individuals and individuals in the 2001 cohort. In addition, individuals with fewer chronic conditions had better mobility than those with more diseases. Mobility declined for most of the participants during the follow-up. The difference in the change in mobility over time for gender, age or chronic conditions was not statistically significant. The analyses were performed with a subgroup of participants aged 90–91 years at the baseline, and results did not differ substantially from the results for the entire study sample. However, the effect of chronic conditions on the change in mobility was statistically significant among participants aged 90-91years. CONCLUSIONS: No differences were observed in the rate of mobility decline over time between age or gender. The effect of chronic conditions on the change in mobility was significant only among individuals aged 90–91 years. The prevention efforts are important and should focus even more, also among the oldest-old, on additional modifiable risk factors such as maintaining muscle strength.
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spelling pubmed-46082122015-10-17 Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study Tiainen, Kristina Raitanen, Jani Vaara, Elina Hervonen, Antti Jylhä, Marja BMC Geriatr Research Article BACKGROUND: Several studies have focused on predictors of mobility limitations and disabilities. Yet little is known about the pace and patterns of mobility changes among very old people. This study examined changes in functional mobility among individuals aged 90 years and older during a 2-9-year follow-up. In addition, we were interested in the patterns of mobility changes. METHODS: Data were collected through a mailed questionnaire in the years 2001, 2003, 2007 and 2010. The study population (n = 948) consisted of individuals from three cohorts (2001, 2003, 2007) who participated in at least two survey rounds and answered the mobility questions. The length of the follow-up varied from 2–9 years between individuals as well as according to how many times an individual took part in the survey. Multilevel ordinal logistic regression analysis was used to evaluate the effects of time, age, gender, cohort and chronic conditions on changes in mobility. RESULTS: At the baseline, “younger” old people, men and individuals in the cohorts for 2003 and 2007 had significantly better mobility compared with women, older individuals and individuals in the 2001 cohort. In addition, individuals with fewer chronic conditions had better mobility than those with more diseases. Mobility declined for most of the participants during the follow-up. The difference in the change in mobility over time for gender, age or chronic conditions was not statistically significant. The analyses were performed with a subgroup of participants aged 90–91 years at the baseline, and results did not differ substantially from the results for the entire study sample. However, the effect of chronic conditions on the change in mobility was statistically significant among participants aged 90-91years. CONCLUSIONS: No differences were observed in the rate of mobility decline over time between age or gender. The effect of chronic conditions on the change in mobility was significant only among individuals aged 90–91 years. The prevention efforts are important and should focus even more, also among the oldest-old, on additional modifiable risk factors such as maintaining muscle strength. BioMed Central 2015-10-15 /pmc/articles/PMC4608212/ /pubmed/26472649 http://dx.doi.org/10.1186/s12877-015-0116-y Text en © Tiainen et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Tiainen, Kristina
Raitanen, Jani
Vaara, Elina
Hervonen, Antti
Jylhä, Marja
Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study
title Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study
title_full Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study
title_fullStr Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study
title_full_unstemmed Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study
title_short Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study
title_sort longitudinal changes in mobility among nonagenarians: the vitality 90+ study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4608212/
https://www.ncbi.nlm.nih.gov/pubmed/26472649
http://dx.doi.org/10.1186/s12877-015-0116-y
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