Evidence map›Paper›PMID 24350695›Full record

Trial reportInternational journal of audiology2013

A randomized controlled trial of nonlinear frequency compression versus conventional processing in hearing aids: speech and language of children at three years of age.

Teresa Y C Ching, Julia Day, Vicky Zhang, Harvey Dillon, Patricia Van Buynder, Mark Seeto, Sanna Hou, Vivienne Marnane, Jessica Thomson, Laura Street and 3 more

Open access · greenAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in International journal of audiology, 2013. 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
1.2field-weighted citation impact, top 21% 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

4 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
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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

13 authors at 1 institution in 1 country.

Teresa Y C Ching* National Acoustic Laboratories , Sydney , Australia.
Julia Day
Vicky Zhang
Harvey Dillon
Patricia Van Buynder
Mark Seeto
Sanna Hou
Vivienne Marnane
Jessica Thomson
Laura Street
Angela Wong
Lauren Burns
Christopher Flynn
National Acoustic Laboratories · AU

Funding

Longitudinal outcomes of hearing-impaired children: early vs later interventionR01DC008080 · NIDCD · AUSTRALIAN HEARING SERVICES · PI EASWAR, VIJAYALAKSHMI · 2007 to 2023
$4.6M
NIDCD NIH HHS R01 DC008080NIDCD NIH HHS R01DC008080
6 · The paper itself

Abstract

objectiveTo determine the effect of nonlinear frequency compression (NLFC) on children's development of speech and language at three years of age.

designA randomized controlled trial was conducted as part of the population-based longitudinal study on outcomes of children with hearing impairment (LOCHI). Participants were randomly assigned to fitting with NLFC (Phonak Naida V SP or UP) or with conventional processing in hearing aids, prescribed by using either the NAL or the DSL formula. Standardized tests of speech production, receptive and expressive language were administered, and parent ratings were collected. All assessments were double-blinded. STUDY SAMPLE: Participants were 44 of the 450 children in the LOCHI cohort.

resultsCompared to children using conventional processing, receptive and expressive language was higher but receptive vocabulary and consonant articulation scores were lower for children who use NLFC. There was increased substitution of affricates by fricatives for children using NLFC, compared to children using conventional amplification. After allowing for the effect of multiple demographic variables, the difference in global language scores between groups was not significant (effect: 0.8 [95% confidence interval: - 6.7, 8.3]).

conclusionsThere is insufficient evidence to indicate a difference in language ability between children using NLFC and those using conventional amplification.

Indexed as

Hearing AidsLanguage DevelopmentSpeechChild, PreschoolFemaleHearing LossHumansInfantMaleTreatment Outcome

Identifiers

PMID24350695
PMCPMC3876028
OpenAlexW2090282892

What OpenQuestion holds

Textmetadata
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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.