Evidence map›Paper›PMID 30383220›Full record

ArticleJournal of speech, language, and hearing research : JSLHR2018

Minimally Detectable Change and Minimal Clinically Important Difference of a Decline in Sentence Intelligibility and Speaking Rate for Individuals With Amyotrophic Lateral Sclerosis.

Kaila L Stipancic, Yana Yunusova, James D Berry, Jordan R Green

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Journal of speech, language, and hearing research : JSLHR, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07173049 (Speech Supplementation Strategies for Improving Intelligibility in Children With Cerebral Palsy), which is not on this map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
3.7field-weighted citation impact, top 7% 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.

NCT07173049 narecruitingnot on this mapstarted 2026, after this paper: background citation

Speech Supplementation Strategies for Improving Intelligibility in Children With Cerebral Palsy (CP)

TypeinterventionalSponsorUniversity of Wisconsin, MadisonRan2026 to 2029Enrolled100ConditionsCerebral Palsy (CP), Intelligibility, Speech, Augmentative and Alternative CommunicationArmsAAC Speech supplementation
3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 77 citations in OpenAlex.

  1. Trial
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  4. Article
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  7. Variable Speech Cueing Effects in Talkers With Parkinson's Disease.American journal of speech-language pathology · 2026
    Article
  8. Article
  9. Article
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  11. Article
  12. Automated Scoring of the Speech Intelligibility Test Using Autoscore.American journal of speech-language pathology · 2025
    Article
  13. Article
  14. Article
  15. Observational
  16. Progression of Motor Speech Function in Speakers With Primary Progressive Apraxia of Speech.Journal of speech, language, and hearing research : JSLHR · 2024
    Article
  17. Article
  18. Article
  19. Article
  20. Multimodal Speech Biomarkers for Remote Monitoring of ALS Disease Progression.medRxiv : the preprint server for health sciences · 2024
    Article
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 2 countries.

Kaila L StipancicDepartment of Communication Sciences and Disorders, MGH Institute of Health Professions, Boston, MA.
Yana YunusovaDepartment of Speech-Language Pathology, University of Toronto, Ontario, Canada.
James D BerryMDA ALS Clinic, Massachusetts General Hospital, Boston.
Jordan R GreenDepartment of Communication Sciences and Disorders, MGH Institute of Health Professions, Boston, MA.
MGH Institute of Health Professions · USMassachusetts General Hospital · USUniversity of Toronto · CA

Funding

The development and validation of a novel tool for the assessment of bulbar dysfunction in ALSR01DC017291 · NIDCD · SUNNYBROOK RESEARCH INSTITUTE · PI JORDAN R GREEN, Yana Yunusova · 2018 to 2026
$3.6M
SPEECH MOVEMENT CLASSIFICATION FOR ASSESSING AND TREATING ALSR01DC013547 · NIDCD · MGH INSTITUTE OF HEALTH PROFESSIONS · PI GREEN, JORDAN R · 2014 to 2018
$3.2M
Bulbar Motor Deterioration in ALSR01DC009890 · NIDCD · UNIVERSITY OF NEBRASKA LINCOLN · PI GREEN, JORDAN R, YUNUSOVA, YANA · 2009 to 2013
$2.3M
Prolonging Functional Speech in Persons with Amyotrophic Lateral Sclerosis: A Real-Time Virtual Vocal TractK24DC016312 · NIDCD · MGH INSTITUTE OF HEALTH PROFESSIONS · PI GREEN, JORDAN R · 2017 to 2021
$949k
NIDCD NIH HHS K24 DC016312NIDCD NIH HHS R01 DC009890NIDCD NIH HHS R01 DC013547NIDCD NIH HHS R01 DC017291
6 · The paper itself

Abstract

Purpose: The purpose of this study was to determine the minimally detectable change (MDC) and minimal clinically important difference (MCID) of a decline in speech sentence intelligibility and speaking rate for individuals with amyotrophic lateral sclerosis (ALS). We also examined how the MDC and MCID vary across severities of dysarthria. Method: One-hundred forty-seven patients with ALS and 49 healthy control subjects were selected from a larger, longitudinal study of bulbar decline in ALS, resulting in a total of 650 observations. Intelligibility and speaking rate in words per minute (WPM) were calculated using the Sentence Intelligibility Test (Yorkston, Beukelman, & Hakel, 2007), and the ALS Functional Rating Scale-Revised (Cedarbaum et al., 1999) was administered to capture patient perception of motor impairment. The MDC at the 95% confidence level was estimated using the following formula: MDC95 = 1.96 × √2 × SEM. For estimation of the MCID, receiver operating characteristic curves were generated, and area under the curve and optimal thresholds to maximize sensitivity and specificity were calculated. Results: The MDC for sentence intelligibility was 12.07%, and the MCID was 1.43%. The MDC for speaking rate was 36.57 WPM, and the MCID was 8.80 WPM. Both MDC and MCID estimates varied with severity of dysarthria. Conclusions: The findings suggest that declines greater than 12% sentence intelligibility and 37 WPM are required to be outside measurement error and that these estimates vary widely across dysarthria severities. The MDC and MCID metrics used in this study to detect real and clinically relevant change should be estimated for other measures of speech outcomes in intervention research.

Indexed as

Minimal Clinically Important DifferenceSpeech IntelligibilitySpeech TherapyAdultAmyotrophic Lateral SclerosisCase-Control StudiesChildHumansROC CurveSensitivity and SpecificitySeverity of Illness IndexSpeechSpeech Production Measurement

Identifiers

PMID30383220
PMCPMC6693567
OpenAlexW2899509401

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.