Evidence map›Paper›PMID 32304244›Full record

Observational studyMuscle & nerve2020

The quality of electrodiagnostic tests for carpal tunnel syndrome: Implications for surgery, outcomes, and expenditures.

Kanaka D Shetty, Michael Robbins, Dixie Aragaki, Aashna Basu, Craig Conlon, Michael Dworsky, Douglas Benner, Rachana Seelam, Teryl K Nuckols

Abstract readObservational Study
In one paragraph

Observational study in Muscle & nerve, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

  1. Observational
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Kanaka D ShettyRAND Corporation, Santa Monica, California.
Michael RobbinsRAND Corporation, Santa Monica, California.
Dixie AragakiVA Greater Los Angeles Healthcare System, Los Angeles, California.
Aashna BasuVA Greater Los Angeles Healthcare System, Los Angeles, California.
Craig ConlonEmployee Health, The Permanente Medical Group, Oakland, California.
Michael DworskyRAND Corporation, Santa Monica, California.
Douglas BennerEK Health, Inc, San Jose, California.
Rachana SeelamRAND Corporation, Santa Monica, California.
Teryl K NuckolsRAND Corporation, Santa Monica, California.ORCID 0000-0002-0416-1595

Funding

The Value of High Quality Medical Care for Work-Associated Carpal Tunnel SyndromeR01HS018982 · AHRQ · RAND CORPORATION · PI NUCKOLS, TERYL · 2010 to 2014
$2.5M
AHRQ HHS R01 HS018982
6 · The paper itself

Abstract

introductionThe quality of electrodiagnostic tests may influence treatment decisions, particularly regarding surgery, affecting health outcomes and health-care expenditures.

methodsWe evaluated test quality among 338 adults with workers' compensation claims for carpal tunnel syndrome. Using simulations, we examined how it influences the appropriateness of surgery. Using regression, we evaluated associations with symptoms and functional limitations (Boston Carpal Tunnel Questionnaire), overall health (12-item Short Form Health Survey version 2), actual receipt of surgery, and expenditures.

resultsIn simulations, suboptimal quality tests rendered surgery inappropriate for 99 of 309 patients (+32 percentage points). In regression analyses, patients with the highest quality tests had larger declines in symptoms (-0.50 point; 95% confidence interval [CI], -0.89 to -0.12) and functional impairment (-0.42 point; 95% CI, -0.78 to -0.06) than patients with the lowest quality tests. Test quality was not associated with overall health, actual receipt of surgery, or expenditures. DISCUSSION: Test quality is pivotal to determining surgical appropriateness and associated with meaningful differences in symptoms and function.

Indexed as

Patient Reported Outcome MeasuresAdultCarpal Tunnel SyndromeElectrodiagnosisFemaleHealth ExpendituresHealth SurveysHumansMaleMiddle AgedOccupational Health ServicesQuality Indicators, Health CareTreatment Outcomecarpal tunnel syndromeelectrodiagnosisfunctional statushealth-care expendituresoccupational diseasespatient-reported outcomesquality measuressurgical appropriateness

Identifiers

PMID32304244
PMCPMC12810154

What OpenQuestion holds

Textmetadata
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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.