Evidence map›Paper›PMID 32833720›Full record

ArticleJournal of clinical neuromuscular disease2020

Longitudinal Analysis of Disease Burden in Refractory and Nonrefractory Generalized Myasthenia Gravis in the United States.

Linda Harris, Phillip H Allman, Reinee Sheffield, Gary Cutter

Open access · hybridAbstract read
In one paragraph

Article in Journal of clinical neuromuscular disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 27% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Disease changes and cost analysis of myasthenia gravis: a 10 years retrospective study from a reference center in Italy.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 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

4 authors at 3 institutions in 1 country.

Linda HarrisHealth Economics & Outcomes Research, Biohaven Pharmaceuticals Inc., New Haven, CT; formerly of Global Health Economics and Outcomes Research, Alexion Pharmaceuticals, Inc., Boston, MA.
Phillip H AllmanDepartment of Biostatistics, University of Alabama at Birmingham, Birmingham, AL; and.
Reinee SheffieldAdvanced Clinical, Deerfield, IL.
Gary CutterDepartment of Biostatistics, University of Alabama at Birmingham, Birmingham, AL; and.
University of Alabama at Birmingham · USAlexion Pharmaceuticals (United States) · USDeerfield (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare temporal trends in clinical and health care resource utilization (HRU) outcomes in people with refractory and nonrefractory generalized myasthenia gravis (gMG).

methodsA retrospective analysis of data from adults with gMG in the Myasthenia Gravis Foundation of America Patient Registry. gMG status (ever-refractory or always nonrefractory) and clinical (Myasthenia Gravis-Activities of Daily Living [MG-ADL] scores, exacerbations) and HRU outcomes were determined from questionnaires self-completed 6-monthly for up to 4 years. The probability of each outcome was compared for the 2 groups over time.

resultsThe mean MG-ADL score and the probability of experiencing each outcome were significantly greater in the ever-refractory versus nonrefractory groups during each year of follow-up. Between-group differences in time trends were statistically significant for intensive care and feeding-tube use.

conclusionsPeople who have ever had refractory gMG may have worse functional status, more exacerbations, and higher HRU than people with consistently nonrefractory disease.

Indexed as

Cost of IllnessActivities of Daily LivingAdultAgedFemaleHumansLongitudinal StudiesMaleMiddle AgedMyasthenia GravisPatient Acceptance of Health CareRetrospective StudiesUnited States

Identifiers

PMID32833720
PMCPMC7447171
OpenAlexW3080949310

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.