Evidence map›Paper›PMID 42791331›Full record

ArticleCommunications medicine2026

Clinical characteristics of asymmetric hearing loss in children from a large pediatric cohort.

Laura E Hahn, Mario Fleischer, Friederike Wohlfarth, Jonas Althaus, Dirk Mürbe, Claudia Männel, Anke Hirschfelder

Abstract read
In one paragraph

Article in Communications medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

7 authors.

Laura E HahnDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany. hahn.laura@yahoo.com.ORCID http://orcid.org/0000-0002-3559-5687
Mario FleischerDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0002-6186-8298
Friederike WohlfarthDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Jonas AlthausDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Dirk MürbeDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Claudia MännelDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Anke HirschfelderDepartment of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAsymmetric hearing loss (HL) is a common pediatric condition, characterized by differences in HL severity between both ears. Anamnestic and audiologic profiles of affected children are sparse, hindering development of evidence-based clinical guidelines.

methodsClinical characteristics for children with bi- and unilateral asymmetric HL were retrospectively obtained from a register of children with permanent HL in Germany. Cohorts were stratified by laterality (uni-/bilateral) and presence of comorbidities (with/without). Between-group differences were assessed using absolute standardized mean differences.

resultsHere we show, across uni- and bilateral groups, family history of HL is reported for approximately 25% and comorbidities for 40%-50% of children. Children with bilateral HL have a higher proportion of pre-/perinatal risk factors (e.g., hypoxia, artificial ventilation) than children with unilateral HL. Hereditary HL is more common in children with bilateral HL, whereas unexplained causes of HL is more frequent in unilateral cases. Sensorineural HL is predominant across groups; conductive or combined HL occurs more often in children with unilateral HL and comorbidities. Sloping and flat audiogram configurations are common across groups, though many children also exhibit other shapes. Notably, 60% of children with bilateral HL present different audiogram configurations in their left and right ears.

conclusionChildren with asymmetric HL represent a heterogeneous population with diverse clinical characteristics. This study highlights the need for comprehensive audiologic examination and tailored technical intervention. Bilateral asymmetries may pose greater clinical challenges compared to unilateral cases, due to higher incidence of comorbidities and risk factors as well as the high incidence of inter-aural differences in audiogram configurations.

Identifiers

PMID42791331
PMCPMC13614944

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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.