Evidence map›Paper›PMID 31957792›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2020

Comparing GPS-Based Community Mobility Measures with Self-report Assessments in Older Adults with Parkinson's Disease.

Lynn Zhu, Christian Duval, Patrick Boissy, Manuel Montero-Odasso, Guangyong Zou, Mandar Jog, Mark Speechley

Registry-linked trialOpen access · bronzeAbstract readComparative Study
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04953637 (Combined Physiotherapy and Deep Brain Stimulation to Improve Independent Community Mobility in Parkinson's Disease), which is not on this map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
9.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04953637 naactive not recruitingnot on this mapstarted 2021, after this paper: background citation

Combined Physiotherapy and Deep Brain Stimulation to Improve Independent Community Mobility in Parkinson's Disease

TypeinterventionalSponsorUniversity of TorontoRan2021 to 2025Enrolled60ConditionsParkinson DiseaseArmsPhysiotherapy
3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Are Mobile Persons With Parkinson Disease Necessarily More Active?Journal of neurologic physical therapy : JNPT · 2021
    Trial
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  11. Mapping the Way to Good Health: The Interdisciplinary Challenges of Geographers in Medical Research.International journal of environmental research and public health · 2022
    Article
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  15. Comparisons Between GPS-based and Self-reported Life-space Mobility in Older Adults.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2022
    Article
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  18. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Lynn ZhuDepartment of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Christian DuvalEcological Mobility in Aging and Parkinson (EMAP) Research Group, Montréal, Québec, Canada.
Patrick BoissyEcological Mobility in Aging and Parkinson (EMAP) Research Group, Montréal, Québec, Canada.
Manuel Montero-OdassoDepartment of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Guangyong ZouDepartment of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Mandar JogEcological Mobility in Aging and Parkinson (EMAP) Research Group, Montréal, Québec, Canada.
Mark SpeechleyDepartment of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Western University · CAUniversité de Sherbrooke · CAUniversité du Québec à Montréal · CA

Funding

CIHR 200907AMG-208147-AML-CFEB-56596
6 · The paper itself

Abstract

backgroundReal-life community mobility (CM) measures for older adults, especially those with Parkinson's disease (PD), are important tools when helping individuals maintain optimal function and quality of life. This is one of the first studies to compare an objective global positioning system (GPS) sensor and subjective self-report CM measures in an older clinical population.

methodsOver 14 days, 54 people in Ontario, Canada with early to mid-stage PD (mean age = 67.5 ± 6.3 years; 47 men; 46 retired) wore a wireless inertial measurement unit with GPS (WIMU-GPS), and completed the Life Space Assessment and mobility diaries. We assessed the convergent validity, reliability and agreement on mobility outcomes using Spearman's correlation, intraclass correlation coefficient, and Bland-Altman analyses, respectively.

resultsConvergent validity was attained by the WIMU-GPS for trip frequency (rs = .69, 95% confidence interval [CI] = 0.52-0.81) and duration outside (rs = .43, 95% CI = 0.18-0.62), but not for life space size (rs = .39, 95% CI = 0.14-0.60). The Life Space Assessment exhibited floor and ceiling effects. Moderate agreements were observed between WIMU-GPS and diary for trip frequency and duration (intraclass correlation coefficients = 0.71, 95% CI = 0.51-0.82; 0.67, 95% CI = 0.42-0.82, respectively). Disagreement was more common among nonretired individuals.

conclusionsWIMU-GPS could replace diaries for trip frequency and duration assessments in older adults with PD. Both assessments are best used for retired persons. However, the Life Space Assessment may not reflect actual mobility.

Indexed as

Geographic Information SystemsSelf ReportActivities of Daily LivingAgedFemaleGeriatric AssessmentHumansMaleMiddle AgedMobility LimitationOntarioParkinson DiseaseQuality of LifeFunctional performanceGeriatric assessmentMeasurement comparisonMobility assessmentParkinson’s disease

Identifiers

PMID31957792
PMCPMC7662184
OpenAlexW3002063942

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.