Evidence map›Paper›PMID 36301615›Full record

ArticleJMIR mental health2022

An App-Based Digit Symbol Substitution Test for Assessment of Cognitive Deficits in Adults With Major Depressive Disorder: Evaluation Study.

Roger S McIntyre, Orly Lipsitz, Nelson B Rodrigues, Mehala Subramaniapillai, Flora Nasri, Yena Lee, Ben Fehnert, James King, Lambros Chrones, Kevin Kratiuk and 4 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in JMIR mental health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03999567 (A Validation Study of a Mobile Phone Digit Symbol Substitution Test Application for Cognition in Adults With Major Depressive Disorder), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.9field-weighted citation impact, top 26% 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.

NCT03999567 nacompletednot on this map

A Validation Study of a Mobile Phone Digit Symbol Substitution Test Application for Cognition in Adults With Major Depressive Disorder

TypeinterventionalSponsorBrain and Cognition Discovery FoundationRan2019 to 2020Enrolled30ConditionsMajor Depressive EpisodeArmsPen and Paper Digit Symbol Substitution Test (DSST), Electronic Digit Symbol Substitution Test (DSST)- (a.k.a. Codebreaker)
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Article
  3. 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

14 authors at 3 institutions in 3 countries.

Roger S McIntyreUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0003-4733-2523
Orly LipsitzUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0001-9110-7951
Nelson B RodriguesUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0002-8128-5612
Mehala SubramaniapillaiUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0002-6917-3984
Flora NasriCanadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada.ORCID https://orcid.org/0000-0002-0627-3558
Yena LeeUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0003-0629-9456
Ben FehnertCtrl Group, London, United Kingdom.ORCID https://orcid.org/0000-0002-5371-2154
James KingCognition Kit, Cambridge, United Kingdom.ORCID https://orcid.org/0000-0003-0324-2059
Lambros ChronesTakeda Pharmaceuticals U.S.A., Inc., Lexington, MA, United States.ORCID https://orcid.org/0000-0001-7822-9364
Kevin KratiukCanadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada.ORCID https://orcid.org/0000-0002-6204-2148
Sharif UddinTakeda Pharmaceuticals U.S.A., Inc., Lexington, MA, United States.ORCID https://orcid.org/0000-0002-0268-2178
Joshua D RosenblatUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0002-4773-2191
Rodrigo B MansurUniversity Health Network, Mood Disorders Psychopharmacology Unit, Toronto, ON, Canada.ORCID https://orcid.org/0000-0002-3968-3297
Maggie McCueTakeda Pharmaceuticals U.S.A., Inc., Lexington, MA, United States.ORCID https://orcid.org/0000-0003-1953-1795
University Health Network · CATakeda (United States) · USCambridge Cognition (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCognitive dysfunction is an impairing core symptom of depression. Among adults with major depressive disorder (MDD) treated with antidepressants, residual cognitive symptoms interfere with patient-reported outcomes. The foregoing characterization of cognitive symptoms provides the rationale for screening and assessing the severity of cognitive symptoms at point of care. However, clinical neurocognitive assessments are time-consuming and difficult, and they require specialist expertise to interpret them. A smartphone-delivered neurocognitive test may offer an effective and accessible tool that can be readily implemented into a measurement-based care framework.

objectiveWe aimed to evaluate the use of a smartphone-delivered app-based version of the established Cognition Kit Digit Symbol Substitution Test (DSST) neurocognitive assessment compared to a traditional paper-and-pencil version.

methodsConvergent validity and test-retest reliability of the 2 versions were evaluated. Patient satisfaction with the app was also assessed.

resultsAssessments made using the app-based Cognition Kit DSST were highly correlated with the standard paper-and-pencil version of the test, both at the baseline visit (r=0.69, df=27; P<.001) and at the end-of-study visit (r=0.82, df=27; P<.001), and they were positively evaluated by 30 patients as being user-friendly, easy to navigate, and preferable over the paper-and-pencil version of the DSST. However, although the app-based Cognition Kit DSST was validated in patients with MDD, it still needs to be evaluated in healthy controls.

conclusionsApp-based DSST may facilitate a more personalized, convenient, and cost-effective method of cognitive assessment, helping to guide measurement-based care and psychotherapeutic and pharmacologic treatment options for patients with MDD.

trial registrationClinicalTrials.gov NCT03999567; https://tinyurl.com/2p8pnyv7.

Indexed as

cognitiondepressionDigit Symbol Substitution TestDSSTmeasurement-based caresmartphonetechnology

Identifiers

PMID36301615
PMCPMC9650567
OpenAlexW4307494781

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.