Evidence map›Paper›PMID 32685281›Full record

ArticleFatigue : biomedicine, health & behavior2019

The DePaul Symptom Questionnaire-2: A Validation Study.

Helen Bedree, Madison Sunnquist, Leonard A Jason

Open access · greenAbstract read
In one paragraph

Article in Fatigue : biomedicine, health & behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Recent research in myalgic encephalomyelitis/chronic fatigue syndrome: an evidence map.Health technology assessment (Winchester, England) · 2025
    Pooled it
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  6. Observational
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  9. Possible Racial Disparities in the Diagnosis of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS).International journal of environmental research and public health · 2025
    Article
  10. Article
  11. Absence of BOLD adaptation in chronic fatigue syndrome revealed by task functional MRI.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025
    Observational
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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

3 authors at 1 institution in 1 country.

Helen BedreeCenter for Community Research, DePaul University.
Madison SunnquistCenter for Community Research, DePaul University.
Leonard A JasonCenter for Community Research, DePaul University.
DePaul University · US

Funding

Pediatric CFS in a Community-Based SampleR01HD072208 · NICHD · DE PAUL UNIVERSITY · PI JASON, LEONARD A · 2013 to 2017
$2.0M
NICHD NIH HHS R01 HD072208
6 · The paper itself

Abstract

backgroundThe DePaul Symptom Questionnaire (DSQ) was developed to assess the symptomatology and case definition fulfillment of individuals with myalgic encephalomyelitis (ME) and chronic fatigue syndrome (CFS). The questionnaire was recently revised to improve its psychometric properties, increase its diagnostic reliability, and assess symptoms required by case definitions. The resulting instrument was named the DSQ-2. PURPOSE: The current study sought to evaluate the utility and reliability of the new and revised items in the DSQ-2.

methodA cross-sectional sample of 399 adults with ME or CFS was recruited to complete the DSQ-2.

resultsDescriptive analyses of the DSQ-2 suggest that the new and revised items enhance the instrument's ability to assess certain symptom domains and evaluate recent case definitions. Additionally, an exploratory factor analysis resulted in an eight-factor solution: post-exertional malaise, cognitive impairment, fever and flu, pain, sleep disruption, orthostatic intolerance, genitourinary issues, and temperature intolerance. The items within each factor demonstrated strong internal consistency reliability (Cronbach's alphas = .73-.91).

conclusionThese analyses indicate that the DSQ-2 offers a more thorough and precise understanding ME and CFS symptomology and case definition fulfillment.

Indexed as

case definitionschronic fatigue syndromeDePaul Symptom Questionnairemyalgic encephalomyelitissymptom assessment

Identifiers

PMID32685281
PMCPMC7367506
OpenAlexW2967871469

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.