Evidence map›Paper›PMID 31122277›Full record

SynthesisBMC research notes2019

Association of anemia with sensorineural hearing loss: a systematic review and meta-analysis.

Shimel Hussien Mohammed, Sakineh Shab-Bidar, Samer Abuzerr, Tesfa Dejenie Habtewold, Shahab Alizadeh, Kurosh Djafarian

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC research notes, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 4 pooled it
1.8field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 4 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Efficacy of inositol supplementation for the prevention and treatment of gestational diabetes in pregnant women: Results from an umbrella meta-analysis.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Study of Association of Sensory Neural Hearing Loss with Iron Deficiency Anaemia.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

6 authors at 2 institutions in 2 countries.

Shimel Hussien MohammedDepartment of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences-International Campus, Tehran, Iran. shimelsh@gmail.com.ORCID http://orcid.org/0000-0001-8231-4158
Sakineh Shab-BidarDepartment of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
Samer AbuzerrDepartment of Environmental Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences-International Campus, Tehran, Iran.
Tesfa Dejenie HabtewoldDepartment of Nursing, Debre Berhan University, Debre Berhan, Ethiopia.
Shahab AlizadehDepartment of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
Kurosh DjafarianDepartment of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
Tehran University of Medical Sciences · IRDebre Berhan University · ET

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveEvidence shows that anemic individuals are at a higher risk of hearing loss. However, there is no systematic review and meta-analysis study. Thus, we aimed to meta-analyze the existing evidence on the association of iron deficiency anemia (IDA) with sensorineural hearing loss (SNHL). We searched PubMed, MEDLINE, Embase, Scopus, and Google Scholar from inception through October 30, 2017, for studies done on the association of the IDA with SNHL. Pooled odds ratio (OR) was calculated by random effect meta-analysis method. Heterogeneity was assessed by I

resultFour studies, covering a total of 344,080 adults and children, were included. The odds of SNHL was higher by 55% in individuals with IDA, compared with individuals without IDA (OR = 1.55, 95% CI 1.17-2.06; P = 0.03). The age-specific ORs were 1.36 (95% CI 1.15-1.61; P = 0.27) and 3.67 (95% CI 1.72-7.84) for adults and children, respectively. IDA may be a contributing factor to hearing loss. Further studies are warranted, including whether IDA treatment reduces the risk of hearing loss. Meanwhile, hearing loss screening in anemic individuals, or vice versa, may represent an important consideration. PROSPERO registration CRD42017082108.

Indexed as

AdultAnemia, Iron-DeficiencyChildCohort StudiesFemaleHearing Loss, SensorineuralHumansMaleOdds RatioAnemiaHearing impairmentHearing lossReviewSensorineural hearing loss

Identifiers

PMID31122277
PMCPMC6533653
OpenAlexW2947967429

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.