Cargando…

Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports

BACKGROUND: Although previous studies have indicated that performance assessments strongly predict future survival, few have evaluated the incremental value in the presence of controls for self-reported activity and mobility limitations. OBJECTIVE: We assess and compare the added value of four tests...

Descripción completa

Detalles Bibliográficos
Autores principales: Goldman, Noreen, Glei, Dana A., Rosero-Bixby, Luis, Chiou, Shu-Ti, Weinstein, Maxine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4392849/
https://www.ncbi.nlm.nih.gov/pubmed/25866473
http://dx.doi.org/10.4054/DemRes.2013.30.7
_version_ 1782366055149076480
author Goldman, Noreen
Glei, Dana A.
Rosero-Bixby, Luis
Chiou, Shu-Ti
Weinstein, Maxine
author_facet Goldman, Noreen
Glei, Dana A.
Rosero-Bixby, Luis
Chiou, Shu-Ti
Weinstein, Maxine
author_sort Goldman, Noreen
collection PubMed
description BACKGROUND: Although previous studies have indicated that performance assessments strongly predict future survival, few have evaluated the incremental value in the presence of controls for self-reported activity and mobility limitations. OBJECTIVE: We assess and compare the added value of four tests – walking speed, chair stands, grip strength, and peak expiratory flow (PEF) – for predicting all-cause mortality. METHODS: Using population-based samples of older adults in Costa Rica (n = 2290, aged 60+) and Taiwan (n = 1219, aged 53+), we estimate proportional hazards models of mortality for an approximate five-year period. Receiver Operator Characteristic (ROC) curves are used to assess the prognostic value of each performance assessment. RESULTS: Self-reported measures of physical limitations contribute substantial gains in mortality prediction, whereas performance-based assessments yield modest incremental gains. PEF provides the greatest added value, followed by grip strength. Our results suggest that including more than two performance assessments may provide little improvement in mortality prediction. CONCLUSIONS: PEF and grip strength are often simpler to administer in home interview settings, impose less of a burden on some respondents, and, in the presence of self-reported limitations, appear to be better predictors of mortality than do walking speed or chair stands. COMMENTS: Being unable to perform the test is often a strong predictor of mortality, but these indicators are not well-defined. Exclusion rates vary by the specific task and are likely to depend on the underlying demographic, health, social and cultural characteristics of the sample.
format Online
Article
Text
id pubmed-4392849
institution National Center for Biotechnology Information
language English
publishDate 2014
record_format MEDLINE/PubMed
spelling pubmed-43928492015-04-10 Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports Goldman, Noreen Glei, Dana A. Rosero-Bixby, Luis Chiou, Shu-Ti Weinstein, Maxine Demogr Res Article BACKGROUND: Although previous studies have indicated that performance assessments strongly predict future survival, few have evaluated the incremental value in the presence of controls for self-reported activity and mobility limitations. OBJECTIVE: We assess and compare the added value of four tests – walking speed, chair stands, grip strength, and peak expiratory flow (PEF) – for predicting all-cause mortality. METHODS: Using population-based samples of older adults in Costa Rica (n = 2290, aged 60+) and Taiwan (n = 1219, aged 53+), we estimate proportional hazards models of mortality for an approximate five-year period. Receiver Operator Characteristic (ROC) curves are used to assess the prognostic value of each performance assessment. RESULTS: Self-reported measures of physical limitations contribute substantial gains in mortality prediction, whereas performance-based assessments yield modest incremental gains. PEF provides the greatest added value, followed by grip strength. Our results suggest that including more than two performance assessments may provide little improvement in mortality prediction. CONCLUSIONS: PEF and grip strength are often simpler to administer in home interview settings, impose less of a burden on some respondents, and, in the presence of self-reported limitations, appear to be better predictors of mortality than do walking speed or chair stands. COMMENTS: Being unable to perform the test is often a strong predictor of mortality, but these indicators are not well-defined. Exclusion rates vary by the specific task and are likely to depend on the underlying demographic, health, social and cultural characteristics of the sample. 2014-01-23 /pmc/articles/PMC4392849/ /pubmed/25866473 http://dx.doi.org/10.4054/DemRes.2013.30.7 Text en © 2014 Goldman, Glei, Rosero-Bixby, Chiou & Weinstein. http://creativecommons.org/licenses/by-nc/2.0/de/ This open-access work is published under the terms of the Creative Commons Attribution NonCommercial License 2.0 Germany, which permits use, reproduction & distribution in any medium for non-commercial purposes, provided the original author(s) and source are given credit. See http://creativecommons.org/licenses/by-nc/2.0/de/
spellingShingle Article
Goldman, Noreen
Glei, Dana A.
Rosero-Bixby, Luis
Chiou, Shu-Ti
Weinstein, Maxine
Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports
title Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports
title_full Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports
title_fullStr Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports
title_full_unstemmed Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports
title_short Performance-based measures of physical function as mortality predictors: Incremental value beyond self-reports
title_sort performance-based measures of physical function as mortality predictors: incremental value beyond self-reports
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4392849/
https://www.ncbi.nlm.nih.gov/pubmed/25866473
http://dx.doi.org/10.4054/DemRes.2013.30.7
work_keys_str_mv AT goldmannoreen performancebasedmeasuresofphysicalfunctionasmortalitypredictorsincrementalvaluebeyondselfreports
AT gleidanaa performancebasedmeasuresofphysicalfunctionasmortalitypredictorsincrementalvaluebeyondselfreports
AT roserobixbyluis performancebasedmeasuresofphysicalfunctionasmortalitypredictorsincrementalvaluebeyondselfreports
AT chioushuti performancebasedmeasuresofphysicalfunctionasmortalitypredictorsincrementalvaluebeyondselfreports
AT weinsteinmaxine performancebasedmeasuresofphysicalfunctionasmortalitypredictorsincrementalvaluebeyondselfreports