Evidence map›Paper›PMID 39861417›Full record

SynthesisNutrients2025

Adherence to the Mediterranean Diet and the Risk of Head and Neck Cancer: A Systematic Review and Meta-Analysis of Case-Control Studies.

Nader Zalaquett, Irene Lidoriki, Maria Lampou, Jad Saab, Kishor Hadkhale, Costas Christophi, Stefanos N Kales

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Nutrients, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

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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

7 authors.

Nader ZalaquettFaculty of Medicine, American University of Beirut, Beirut 1107, Lebanon.ORCID 0009-0008-7206-152X
Irene LidorikiDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.ORCID 0000-0003-4608-9621
Maria LampouDivision of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA.ORCID 0000-0003-0121-4046
Jad SaabFaculty of Medicine, American University of Beirut, Beirut 1107, Lebanon.ORCID 0009-0002-3105-1831
Kishor HadkhaleDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.ORCID 0000-0002-8173-9469
Costas ChristophiDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.ORCID 0000-0003-0503-1538
Stefanos N KalesDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.ORCID 0000-0002-7712-4664

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesHead and neck cancer (HNC) is the seventh most common cancer worldwide, with rising incidence rates and significant mortality. While tobacco use, alcohol consumption, and viral infections are established risk factors, the role of dietary patterns, particularly adherence to the Mediterranean diet (MD), in HNC prevention has gained increasing attention. The aim of the current systematic review and meta-analysis is to investigate the association between adherence to the MD and the risk of HNC.

methodsA comprehensive search was conducted, following PRISMA guidelines, to identify relevant studies published up to January 2024 that assessed the association between MD adherence and HNC risk in adults. Pooled odds ratios (OR) for a three-unit increase in MD adherence scores and corresponding 95% confidence intervals (CI) were calculated using a random-effects model. Study quality was assessed using the Newcastle-Ottawa Scale (NOS).

resultsEleven case-control studies comprising 6106 HNC cases and 9166 controls met the inclusion criteria for the systematic review. High adherence to the MD was significantly associated with a reduced risk of HNC (pooled OR = 0.561, 95% CI: 0.368-0.856,

conclusionsAdherence to the Mediterranean diet is associated with a significantly reduced risk of head and neck cancer. These findings support the role of the MD in cancer prevention and highlight the potential benefits of MD adherence in reducing HNC risk. Further prospective studies and randomized controlled trials are needed to confirm these findings and explore the underlying mechanisms.

Indexed as

Diet, MediterraneanHead and Neck NeoplasmsPatient ComplianceAdultCase-Control StudiesFemaleHumansMaleMiddle AgedRisk Factorsadherencedietary patternhead and neck cancerMediterranean dietmeta-analysisoral cancer

Identifiers

PMID39861417
PMCPMC11767401

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Registered trials

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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.