Evidence map›Paper›PMID 31435490›Full record

ArticleFatigue : biomedicine, health & behavior2018

Latent class analysis of a heterogeneous international sample of patients with myalgic encephalomyelitis/chronic fatigue syndrome.

Kayla A Huber, Madison Sunnquist, Leonard A Jason

Abstract read
In one paragraph

Article in Fatigue : biomedicine, health & behavior, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Recent research in myalgic encephalomyelitis/chronic fatigue syndrome: an evidence map.Health technology assessment (Winchester, England) · 2025
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  4. [What Medical Specialties do ME/CFS Sufferers Consult? A Public Health Study on the need for Better Medical Education and Training].Gesundheitswesen (Bundesverband der Arzte des Offentlichen Gesundheitsdienstes (Germany)) · 2024
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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.

Kayla A HuberCenter for Community Research, DePaul University, 990 W. Fullerton Ave. Suite 3101, Chicago, IL 60614, kayla.a.huber@gmail.com;
Madison SunnquistCenter for Community Research, DePaul University, 990 W. Fullerton Ave. Suite 3101, Chicago, IL 60614, msunnqui@depaul.edu;
Leonard A JasonCenter for Community Research, DePaul University, 990 W. Fullerton Ave. Suite 3101, Chicago, IL 60614, ljason@depaul.edu;

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

backgroundIndividuals with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) routinely display differences in symptomatology, as well as illness course, onset, duration, and functional disability. Given such diversity, previous work has attempted to identify symptom-based ME/CFS subtypes. However, results have been inconsistent. PURPOSE: This study sought to elucidate potential subtypes of ME/CFS as well as explore the impact of subtype membership on health functioning.

methodsTwelve non-core (i.e., less frequently endorsed) symptoms were included in a latent class analysis of 1,210 adults with ME/CFS. Demographic and illness-related predictors of class membership were evaluated with a multinomial logistic regression. ANOVAs were then performed to determine if there were significant differences across class on the eight subscales of the Short-Form Health Survey (SF-36).

resultsA six-class solution was selected, which consisted of one class that was likely to endorse all non-core symptoms, one class that was unlikely to endorse any non-core symptoms, and four classes that were likely to endorse either one or two non-core symptom domains (i.e., circulatory/neuroendocrine impairment, orthostatic intolerance, and gastro-intestinal distress). Significant functioning differences by class were present for all SF-36 subscales.

conclusionsThese results are suggestive of subtypes of ME/CFS and, if replicated, may assist physicians in providing tailored treatment to patients and allow researchers to form more homogeneous samples.

Indexed as

chronic fatigue syndromehealth functioninglatent class analysismyalgic encephalomyelitissubtypes

Identifiers

PMID31435490
PMCPMC6703845

What OpenQuestion holds

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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.