Evidence map›Paper›PMID 20538185›Full record

ArticleJournal of pain and symptom management2010

Qualities of fatigue and associated chronic conditions among older adults.

Susan E Hardy, Stephanie A Studenski

Open access · greenAbstract read
In one paragraph

Article in Journal of pain and symptom management, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 17% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 83 citations in OpenAlex.

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  7. Fatigue after pulmonary embolism-prevalence and predictors.Frontiers in cardiovascular medicine · 2026
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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

2 authors at 2 institutions in 1 country.

Susan E HardyDivision of Geriatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA. hardys@dom.pitt.edu
Stephanie A Studenski
Geriatric Research Education and Clinical Center · USUniversity of Pittsburgh · US

Funding

VARIABILITY, STABILITY & SMOOTHNESS OF WALKINGP30AG024827 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JENNIFER S BRACH · 2004 to 2026
$28.6M
Functional Recovery in Post-Acute CareK23AG030977 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HARDY, SUSAN E · 2008 to 2012
$545k
Training in Aging Research for MD InvestigatorsK07AG023641 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI STUDENSKI, STEPHANIE A · 2004 to 2008
$540k
NIA NIH HHS K07 AG023641NIA NIH HHS K23 AG030977NIA NIH HHS P30 AG-024827NIA NIH HHS P30 AG024827
6 · The paper itself

Abstract

contextAlthough fatigue is a common and distressing symptom, a well-specified definition of fatigue is lacking. One of the least well-defined aspects of fatigue is its quality, which might reflect the underlying pathophysiology.

objectiveTo identify the qualities of fatigue and assess whether they are associated with distinct chronic conditions.

methodsWe identified five fatigue qualities in the literature, two mental and three physical, and selected representative items from those available in our data from a prospective cohort of 495 community-dwelling primary care patients aged 65 years or older. We then examined the prevalence of each quality, the correlations among qualities, and the association of fatigue qualities with health and functional status, including chronic conditions.

resultsFatigue was very common among older primary care patients, with 70% reporting one or more fatigue qualities and 43% reporting feeling tired most of the time, and was associated with worse health and functional status. Physical fatigue qualities were more common than mental qualities. Correlations among fatigue qualities were 0.09-0.27 and did not support the mental vs. physical classification. Different fatigue qualities were not well explained by older adults' underlying chronic conditions. Rather, the cumulative number of fatigue qualities was associated with worse health and function.

conclusionThese first steps in exploring fatigue qualities suggest that different fatigue qualities could represent disparate manifestations of a common underlying etiology, while not ruling out distinct underlying pathophysiologies.

Indexed as

Chronic DiseaseAgedCognitionFatigueFemaleHealth StatusHumansMaleMuscle FatigueNeuropsychological Tests

Identifiers

PMID20538185
PMCPMC2884149
OpenAlexW2016903415

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.